style(backend): improve error handling

fix(backend/infrastructure/persistence/postgres): some fixes on FileRepository methods
fix(backend/infrastructure/persistence/postgres): add testing connection to db and improve error messages
2025-10-10 01:37:01 +03:00 · 2025-10-10 00:31:51 +03:00 · 2025-10-09 21:01:38 +03:00 · 2025-10-09 01:46:10 +03:00 · 2025-10-09 01:45:43 +03:00 · 2025-10-09 01:39:19 +03:00
150 changed files with 1488 additions and 12092 deletions
@@ -1,36 +0,0 @@
-# =============================================================================
-# Tanabata File Manager — environment variables
-# Copy to .env and fill in the values.
-# =============================================================================
-
-# ---------------------------------------------------------------------------
-# Server
-# ---------------------------------------------------------------------------
-LISTEN_ADDR=:8080
-JWT_SECRET=change-me-to-a-random-32-byte-secret
-JWT_ACCESS_TTL=15m
-JWT_REFRESH_TTL=720h
-
-# ---------------------------------------------------------------------------
-# Database
-# ---------------------------------------------------------------------------
-DATABASE_URL=postgres://tanabata:password@localhost:5432/tanabata?sslmode=disable
-
-# ---------------------------------------------------------------------------
-# Storage
-# ---------------------------------------------------------------------------
-FILES_PATH=/data/files
-THUMBS_CACHE_PATH=/data/thumbs
-
-# ---------------------------------------------------------------------------
-# Thumbnails
-# ---------------------------------------------------------------------------
-THUMB_WIDTH=160
-THUMB_HEIGHT=160
-PREVIEW_WIDTH=1920
-PREVIEW_HEIGHT=1080
-
-# ---------------------------------------------------------------------------
-# Import
-# ---------------------------------------------------------------------------
-IMPORT_PATH=/data/import
@@ -1,67 +0,0 @@
-# =============================================================================
-# Tanabata File Manager — .gitattributes
-# =============================================================================
-
-# ---------------------------------------------------------------------------
-# Line endings: normalize to LF in repo, native on checkout
-# ---------------------------------------------------------------------------
-* text=auto eol=lf
-
-# ---------------------------------------------------------------------------
-# Explicitly text
-# ---------------------------------------------------------------------------
-*.go        text eol=lf
-*.mod       text eol=lf
-*.sum       text eol=lf
-*.sql       text eol=lf
-*.ts        text eol=lf
-*.js        text eol=lf
-*.svelte    text eol=lf
-*.html      text eol=lf
-*.css       text eol=lf
-*.json      text eol=lf
-*.yaml      text eol=lf
-*.yml       text eol=lf
-*.md        text eol=lf
-*.txt       text eol=lf
-*.env*      text eol=lf
-*.sh        text eol=lf
-*.toml      text eol=lf
-*.xml       text eol=lf
-*.svg       text eol=lf
-Dockerfile  text eol=lf
-Makefile    text eol=lf
-
-# ---------------------------------------------------------------------------
-# Explicitly binary
-# ---------------------------------------------------------------------------
-*.png       binary
-*.jpg       binary
-*.jpeg      binary
-*.gif       binary
-*.webp      binary
-*.ico       binary
-*.ttf       binary
-*.woff      binary
-*.woff2     binary
-*.eot       binary
-*.otf       binary
-*.zip       binary
-*.gz        binary
-*.tar       binary
-
-# ---------------------------------------------------------------------------
-# Diff behavior
-# ---------------------------------------------------------------------------
-*.sql       diff=sql
-*.go        diff=golang
-*.css       diff=css
-*.html      diff=html
-
-# ---------------------------------------------------------------------------
-# Linguist: set repo language stats correctly
-# ---------------------------------------------------------------------------
-docs/reference/** linguist-documentation
-frontend/static/** linguist-vendored
-*.min.js linguist-vendored
-*.min.css linguist-vendored
@@ -1,86 +0,0 @@
-# =============================================================================
-# Tanabata File Manager — .gitignore
-# =============================================================================
-
-# ---------------------------------------------------------------------------
-# Environment & secrets
-# ---------------------------------------------------------------------------
-.env
-.env.local
-.env.*.local
-*.pem
-*.key
-
-# ---------------------------------------------------------------------------
-# OS
-# ---------------------------------------------------------------------------
-.DS_Store
-Thumbs.db
-Desktop.ini
-*.swp
-*.swo
-*~
-
-# ---------------------------------------------------------------------------
-# IDE
-# ---------------------------------------------------------------------------
-.vscode/*
-!.vscode/extensions.json
-!.vscode/settings.json
-.idea/
-*.iml
-*.sublime-project
-*.sublime-workspace
-
-# ---------------------------------------------------------------------------
-# Backend (Go)
-# ---------------------------------------------------------------------------
-backend/tmp/
-backend/cmd/server/server
-*.exe
-*.exe~
-*.dll
-*.so
-*.dylib
-*.test
-*.out
-*.prof
-coverage.out
-coverage.html
-
-# ---------------------------------------------------------------------------
-# Frontend (SvelteKit / Node)
-# ---------------------------------------------------------------------------
-frontend/node_modules/
-frontend/.svelte-kit/
-frontend/build/
-frontend/dist/
-frontend/src/lib/api/schema.ts
-
-# ---------------------------------------------------------------------------
-# Docker
-# ---------------------------------------------------------------------------
-docker-compose.override.yml
-
-# ---------------------------------------------------------------------------
-# Data directories (runtime, not in repo)
-# ---------------------------------------------------------------------------
-data/
-*.sqlite
-*.sqlite3
-
-# ---------------------------------------------------------------------------
-# Misc
-# ---------------------------------------------------------------------------
-*.log
-*.pid
-*.seed
-
-# ---------------------------------------------------------------------------
-# Reference: exclude vendored libs, keep design sources
-# ---------------------------------------------------------------------------
-docs/reference/**/bootstrap.min.css
-docs/reference/**/bootstrap.min.css.map
-docs/reference/**/jquery-*.min.js
-docs/reference/**/__pycache__/
-docs/reference/**/*.pyc
@@ -1,55 +0,0 @@
-# Tanabata File Manager
-
-Multi-user, tag-based web file manager for images and video.
-
-## Architecture
-
-Monorepo: `backend/` (Go) + `frontend/` (SvelteKit).
-
- Backend: Go + Gin + pgx v5 + goose migrations. Clean Architecture.
- Frontend: SvelteKit SPA + Tailwind CSS + CSS custom properties.
- DB: PostgreSQL 14+.
- Auth: JWT Bearer tokens.
-
-## Key documents (read before coding)
-
- `openapi.yaml` — full REST API specification (36 paths, 58 operations)
- `docs/GO_PROJECT_STRUCTURE.md` — backend architecture, layer rules, DI pattern
- `docs/FRONTEND_STRUCTURE.md` — frontend architecture, CSS approach, API client
- `docs/Описание.md` — product requirements in Russian
- `backend/migrations/001_init.sql` — database schema (4 schemas, 16 tables)
-
-## Design reference
-
-The `docs/reference/` directory contains the previous Python/Flask version.
-Use its visual design as the basis for the new frontend:
- Color palette: #312F45 (bg), #9592B5 (accent), #444455 (tag default), #111118 (elevated)
- Font: Epilogue (variable weight)
- Dark theme is primary
- Mobile-first layout with bottom navbar
- 160×160 thumbnail grid for files
- Colored tag pills
- Floating selection bar for multi-select
-
-## Backend commands
-```bash
-cd backend
-go run ./cmd/server          # run dev server
-go test ./...                # run all tests
-```
-
-## Frontend commands
-```bash
-cd frontend
-npm run dev                  # vite dev server
-npm run build                # production build
-npm run generate:types       # regenerate API types from openapi.yaml
-```
-
-## Conventions
-
- Go: gofmt, no global state, context.Context as first param in all service methods
- TypeScript: strict mode, named exports
- SQL: snake_case, all migrations via goose
- API errors: { code, message, details? }
- Git: conventional commits (feat:, fix:, docs:, refactor:)
@@ -1,70 +0,0 @@
-package main
-
-import (
-	"context"
-	"log/slog"
-	"os"
-
-	"github.com/jackc/pgx/v5/stdlib"
-	"github.com/pressly/goose/v3"
-
-	"tanabata/backend/internal/config"
-	"tanabata/backend/internal/db/postgres"
-	"tanabata/backend/internal/handler"
-	"tanabata/backend/internal/service"
-	"tanabata/backend/migrations"
-)
-
-func main() {
-	cfg, err := config.Load()
-	if err != nil {
-		slog.Error("failed to load config", "err", err)
-		os.Exit(1)
-	}
-
-	pool, err := postgres.NewPool(context.Background(), cfg.DatabaseURL)
-	if err != nil {
-		slog.Error("failed to connect to database", "err", err)
-		os.Exit(1)
-	}
-	defer pool.Close()
-	slog.Info("database connected")
-
-	migDB := stdlib.OpenDBFromPool(pool)
-	goose.SetBaseFS(migrations.FS)
-	if err := goose.SetDialect("postgres"); err != nil {
-		slog.Error("goose dialect error", "err", err)
-		os.Exit(1)
-	}
-	if err := goose.Up(migDB, "."); err != nil {
-		slog.Error("migrations failed", "err", err)
-		os.Exit(1)
-	}
-	migDB.Close()
-	slog.Info("migrations applied")
-
-	// Repositories
-	userRepo    := postgres.NewUserRepo(pool)
-	sessionRepo := postgres.NewSessionRepo(pool)
-
-	// Services
-	authSvc := service.NewAuthService(
-		userRepo,
-		sessionRepo,
-		cfg.JWTSecret,
-		cfg.JWTAccessTTL,
-		cfg.JWTRefreshTTL,
-	)
-
-	// Handlers
-	authMiddleware := handler.NewAuthMiddleware(authSvc)
-	authHandler    := handler.NewAuthHandler(authSvc)
-
-	r := handler.NewRouter(authMiddleware, authHandler)
-
-	slog.Info("starting server", "addr", cfg.ListenAddr)
-	if err := r.Run(cfg.ListenAddr); err != nil {
-		slog.Error("server error", "err", err)
-		os.Exit(1)
-	}
-}
@@ -1,52 +1,19 @@
-module tanabata/backend
+module tanabata

-go 1.26
+go 1.23.0

-toolchain go1.26.1
+toolchain go1.23.10
+
+require github.com/jackc/pgx/v5 v5.7.5

 require (
-	github.com/gin-gonic/gin v1.9.1
-	github.com/google/uuid v1.6.0
-	github.com/jackc/pgx/v5 v5.5.5
-	github.com/joho/godotenv v1.5.1
-	github.com/pressly/goose/v3 v3.21.1
-)
-
-require (
-	github.com/bytedance/gopkg v0.1.3 // indirect
-	github.com/bytedance/sonic v1.15.0 // indirect
-	github.com/bytedance/sonic/loader v0.5.0 // indirect
-	github.com/cloudwego/base64x v0.1.6 // indirect
-	github.com/gabriel-vasile/mimetype v1.4.12 // indirect
-	github.com/gin-contrib/sse v0.1.0 // indirect
-	github.com/go-playground/locales v0.14.1 // indirect
-	github.com/go-playground/universal-translator v0.18.1 // indirect
-	github.com/go-playground/validator/v10 v10.22.0 // indirect
-	github.com/goccy/go-json v0.10.5 // indirect
-	github.com/golang-jwt/jwt/v5 v5.3.1 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
-	github.com/jackc/puddle/v2 v2.2.1 // indirect
-	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/klauspost/cpuid/v2 v2.2.9 // indirect
-	github.com/kr/text v0.2.0 // indirect
-	github.com/leodido/go-urn v1.4.0 // indirect
-	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/mfridman/interpolate v0.0.2 // indirect
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
-	github.com/rogpeppe/go-internal v1.14.1 // indirect
-	github.com/sethvargo/go-retry v0.3.0 // indirect
-	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
-	github.com/ugorji/go/codec v1.3.1 // indirect
-	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/arch v0.22.0 // indirect
-	golang.org/x/crypto v0.39.0 // indirect
-	golang.org/x/net v0.33.0 // indirect
-	golang.org/x/sync v0.19.0 // indirect
-	golang.org/x/sys v0.41.0 // indirect
-	golang.org/x/text v0.34.0 // indirect
-	google.golang.org/protobuf v1.36.11 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
+	github.com/jackc/pgx v3.6.2+incompatible // indirect
+	github.com/jackc/puddle/v2 v2.2.2 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/stretchr/testify v1.9.0 // indirect
+	golang.org/x/crypto v0.37.0 // indirect
+	golang.org/x/sync v0.13.0 // indirect
+	golang.org/x/text v0.24.0 // indirect
 )
@@ -1,134 +1,32 @@
-github.com/bytedance/gopkg v0.1.3 h1:TPBSwH8RsouGCBcMBktLt1AymVo2TVsBVCY4b6TnZ/M=
-github.com/bytedance/gopkg v0.1.3/go.mod h1:576VvJ+eJgyCzdjS+c4+77QF3p7ubbtiKARP3TxducM=
-github.com/bytedance/sonic v1.15.0 h1:/PXeWFaR5ElNcVE84U0dOHjiMHQOwNIx3K4ymzh/uSE=
-github.com/bytedance/sonic v1.15.0/go.mod h1:tFkWrPz0/CUCLEF4ri4UkHekCIcdnkqXw9VduqpJh0k=
-github.com/bytedance/sonic/loader v0.5.0 h1:gXH3KVnatgY7loH5/TkeVyXPfESoqSBSBEiDd5VjlgE=
-github.com/bytedance/sonic/loader v0.5.0/go.mod h1:AR4NYCk5DdzZizZ5djGqQ92eEhCCcdf5x77udYiSJRo=
-github.com/cloudwego/base64x v0.1.6 h1:t11wG9AECkCDk5fMSoxmufanudBtJ+/HemLstXDLI2M=
-github.com/cloudwego/base64x v0.1.6/go.mod h1:OFcloc187FXDaYHvrNIjxSe8ncn0OOM8gEHfghB2IPU=
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
-github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
-github.com/gabriel-vasile/mimetype v1.4.12 h1:e9hWvmLYvtp846tLHam2o++qitpguFiYCKbn0w9jyqw=
-github.com/gabriel-vasile/mimetype v1.4.12/go.mod h1:d+9Oxyo1wTzWdyVUPMmXFvp4F9tea18J8ufA774AB3s=
-github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
-github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
-github.com/gin-gonic/gin v1.9.1 h1:4idEAncQnU5cB7BeOkPtxjfCSye0AAm1R0RVIqJ+Jmg=
-github.com/gin-gonic/gin v1.9.1/go.mod h1:hPrL7YrpYKXt5YId3A/Tnip5kqbEAP+KLuI3SUcPTeU=
-github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s=
-github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
-github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
-github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY=
-github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY=
-github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
-github.com/go-playground/validator/v10 v10.22.0 h1:k6HsTZ0sTnROkhS//R0O+55JgM8C4Bx7ia+JlgcnOao=
-github.com/go-playground/validator/v10 v10.22.0/go.mod h1:dbuPbCMFw/DrkbEynArYaCwl3amGuJotoKCe95atGMM=
-github.com/goccy/go-json v0.10.5 h1:Fq85nIqj+gXn/S5ahsiTlK3TmC85qgirsdTP/+DeaC4=
-github.com/goccy/go-json v0.10.5/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M=
-github.com/golang-jwt/jwt/v5 v5.3.1 h1:kYf81DTWFe7t+1VvL7eS+jKFVWaUnK9cB1qbwn63YCY=
-github.com/golang-jwt/jwt/v5 v5.3.1/go.mod h1:fxCRLWMO43lRc8nhHWY6LGqRcf+1gQWArsqaEUEa5bE=
-github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
-github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
-github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
-github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
-github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
-github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
 github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
-github.com/jackc/pgx/v5 v5.5.5 h1:amBjrZVmksIdNjxGW/IiIMzxMKZFelXbUoPNb+8sjQw=
-github.com/jackc/pgx/v5 v5.5.5/go.mod h1:ez9gk+OAat140fv9ErkZDYFWmXLfV+++K0uAOiwgm1A=
-github.com/jackc/puddle/v2 v2.2.1 h1:RhxXJtFG022u4ibrCSMSiu5aOq1i77R3OHKNJj77OAk=
-github.com/jackc/puddle/v2 v2.2.1/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
-github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
-github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
-github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
-github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
-github.com/klauspost/cpuid/v2 v2.2.9 h1:66ze0taIn2H33fBvCkXuv9BmCwDfafmiIVpKV9kKGuY=
-github.com/klauspost/cpuid/v2 v2.2.9/go.mod h1:rqkxqrZ1EhYM9G+hXH7YdowN5R5RGN6NK4QwQ3WMXF8=
-github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
-github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
-github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
-github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
-github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
-github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
-github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
-github.com/mfridman/interpolate v0.0.2 h1:pnuTK7MQIxxFz1Gr+rjSIx9u7qVjf5VOoM/u6BbAxPY=
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@@ -1,107 +0,0 @@
-package config
-
-import (
-	"errors"
-	"fmt"
-	"os"
-	"strconv"
-	"time"
-
-	"github.com/joho/godotenv"
-)
-
-// Config holds all application configuration loaded from environment variables.
-type Config struct {
-	// Server
-	ListenAddr    string
-	JWTSecret     string
-	JWTAccessTTL  time.Duration
-	JWTRefreshTTL time.Duration
-
-	// Database
-	DatabaseURL string
-
-	// Storage
-	FilesPath       string
-	ThumbsCachePath string
-
-	// Thumbnails
-	ThumbWidth    int
-	ThumbHeight   int
-	PreviewWidth  int
-	PreviewHeight int
-
-	// Import
-	ImportPath string
-}
-
-// Load reads a .env file (if present) then loads all configuration from
-// environment variables. Returns an error listing every missing or invalid var.
-func Load() (*Config, error) {
-	// Non-fatal: .env may not exist in production.
-	_ = godotenv.Load()
-
-	var errs []error
-
-	requireStr := func(key string) string {
-		v := os.Getenv(key)
-		if v == "" {
-			errs = append(errs, fmt.Errorf("%s is required", key))
-		}
-		return v
-	}
-
-	defaultStr := func(key, def string) string {
-		if v := os.Getenv(key); v != "" {
-			return v
-		}
-		return def
-	}
-
-	parseDuration := func(key, def string) time.Duration {
-		raw := defaultStr(key, def)
-		d, err := time.ParseDuration(raw)
-		if err != nil {
-			errs = append(errs, fmt.Errorf("%s: invalid duration %q: %w", key, raw, err))
-			return 0
-		}
-		return d
-	}
-
-	parseInt := func(key string, def int) int {
-		raw := os.Getenv(key)
-		if raw == "" {
-			return def
-		}
-		n, err := strconv.Atoi(raw)
-		if err != nil {
-			errs = append(errs, fmt.Errorf("%s: invalid integer %q: %w", key, raw, err))
-			return def
-		}
-		return n
-	}
-
-	cfg := &Config{
-		ListenAddr:    defaultStr("LISTEN_ADDR", ":8080"),
-		JWTSecret:     requireStr("JWT_SECRET"),
-		JWTAccessTTL:  parseDuration("JWT_ACCESS_TTL", "15m"),
-		JWTRefreshTTL: parseDuration("JWT_REFRESH_TTL", "720h"),
-
-		DatabaseURL: requireStr("DATABASE_URL"),
-
-		FilesPath:       requireStr("FILES_PATH"),
-		ThumbsCachePath: requireStr("THUMBS_CACHE_PATH"),
-
-		ThumbWidth:    parseInt("THUMB_WIDTH", 160),
-		ThumbHeight:   parseInt("THUMB_HEIGHT", 160),
-		PreviewWidth:  parseInt("PREVIEW_WIDTH", 1920),
-		PreviewHeight: parseInt("PREVIEW_HEIGHT", 1080),
-
-		ImportPath: requireStr("IMPORT_PATH"),
-	}
-
-	if len(errs) > 0 {
-		return nil, errors.Join(errs...)
-	}
-	return cfg, nil
-}
@@ -1,70 +0,0 @@
-// Package db provides shared helpers used by all database adapters.
-package db
-
-import (
-	"context"
-	"fmt"
-
-	"github.com/jackc/pgx/v5"
-	"github.com/jackc/pgx/v5/pgconn"
-)
-
-// txKey is the context key used to store an active transaction.
-type txKey struct{}
-
-// TxFromContext returns the pgx.Tx stored in ctx by the Transactor, along
-// with a boolean indicating whether a transaction is active.
-func TxFromContext(ctx context.Context) (pgx.Tx, bool) {
-	tx, ok := ctx.Value(txKey{}).(pgx.Tx)
-	return tx, ok
-}
-
-// ContextWithTx returns a copy of ctx that carries tx.
-// Called by the Transactor before invoking the user function.
-func ContextWithTx(ctx context.Context, tx pgx.Tx) context.Context {
-	return context.WithValue(ctx, txKey{}, tx)
-}
-
-// Querier is the common query interface satisfied by both *pgxpool.Pool and
-// pgx.Tx, allowing repo helpers to work with either.
-type Querier interface {
-	QueryRow(ctx context.Context, sql string, args ...any) pgx.Row
-	Query(ctx context.Context, sql string, args ...any) (pgx.Rows, error)
-	Exec(ctx context.Context, sql string, args ...any) (pgconn.CommandTag, error)
-}
-
-// ScanRow executes a single-row query against q and scans the result using
-// scan. It wraps pgx.ErrNoRows so callers can detect missing rows without
-// importing pgx directly.
-func ScanRow[T any](ctx context.Context, q Querier, sql string, args []any, scan func(pgx.Row) (T, error)) (T, error) {
-	row := q.QueryRow(ctx, sql, args...)
-	val, err := scan(row)
-	if err != nil {
-		var zero T
-		if err == pgx.ErrNoRows {
-			return zero, fmt.Errorf("%w", pgx.ErrNoRows)
-		}
-		return zero, fmt.Errorf("ScanRow: %w", err)
-	}
-	return val, nil
-}
-
-// ClampLimit enforces the [1, max] range on limit, returning def when limit
-// is zero or negative.
-func ClampLimit(limit, def, max int) int {
-	if limit <= 0 {
-		return def
-	}
-	if limit > max {
-		return max
-	}
-	return limit
-}
-
-// ClampOffset returns 0 for negative offsets.
-func ClampOffset(offset int) int {
-	if offset < 0 {
-		return 0
-	}
-	return offset
-}
@@ -1,97 +0,0 @@
-package postgres
-
-import (
-	"context"
-	"errors"
-	"fmt"
-
-	"github.com/jackc/pgx/v5"
-	"github.com/jackc/pgx/v5/pgxpool"
-
-	"tanabata/backend/internal/domain"
-	"tanabata/backend/internal/port"
-)
-
-type mimeRow struct {
-	ID        int16  `db:"id"`
-	Name      string `db:"name"`
-	Extension string `db:"extension"`
-}
-
-func toMIMEType(r mimeRow) domain.MIMEType {
-	return domain.MIMEType{
-		ID:        r.ID,
-		Name:      r.Name,
-		Extension: r.Extension,
-	}
-}
-
-// MimeRepo implements port.MimeRepo using PostgreSQL.
-type MimeRepo struct {
-	pool *pgxpool.Pool
-}
-
-// NewMimeRepo creates a MimeRepo backed by pool.
-func NewMimeRepo(pool *pgxpool.Pool) *MimeRepo {
-	return &MimeRepo{pool: pool}
-}
-
-var _ port.MimeRepo = (*MimeRepo)(nil)
-
-func (r *MimeRepo) List(ctx context.Context) ([]domain.MIMEType, error) {
-	const sql = `SELECT id, name, extension FROM core.mime_types ORDER BY name`
-
-	q := connOrTx(ctx, r.pool)
-	rows, err := q.Query(ctx, sql)
-	if err != nil {
-		return nil, fmt.Errorf("MimeRepo.List: %w", err)
-	}
-	collected, err := pgx.CollectRows(rows, pgx.RowToStructByName[mimeRow])
-	if err != nil {
-		return nil, fmt.Errorf("MimeRepo.List scan: %w", err)
-	}
-
-	result := make([]domain.MIMEType, len(collected))
-	for i, row := range collected {
-		result[i] = toMIMEType(row)
-	}
-	return result, nil
-}
-
-func (r *MimeRepo) GetByID(ctx context.Context, id int16) (*domain.MIMEType, error) {
-	const sql = `SELECT id, name, extension FROM core.mime_types WHERE id = $1`
-
-	q := connOrTx(ctx, r.pool)
-	rows, err := q.Query(ctx, sql, id)
-	if err != nil {
-		return nil, fmt.Errorf("MimeRepo.GetByID: %w", err)
-	}
-	row, err := pgx.CollectOneRow(rows, pgx.RowToStructByName[mimeRow])
-	if err != nil {
-		if errors.Is(err, pgx.ErrNoRows) {
-			return nil, domain.ErrNotFound
-		}
-		return nil, fmt.Errorf("MimeRepo.GetByID scan: %w", err)
-	}
-	m := toMIMEType(row)
-	return &m, nil
-}
-
-func (r *MimeRepo) GetByName(ctx context.Context, name string) (*domain.MIMEType, error) {
-	const sql = `SELECT id, name, extension FROM core.mime_types WHERE name = $1`
-
-	q := connOrTx(ctx, r.pool)
-	rows, err := q.Query(ctx, sql, name)
-	if err != nil {
-		return nil, fmt.Errorf("MimeRepo.GetByName: %w", err)
-	}
-	row, err := pgx.CollectOneRow(rows, pgx.RowToStructByName[mimeRow])
-	if err != nil {
-		if errors.Is(err, pgx.ErrNoRows) {
-			return nil, domain.ErrUnsupportedMIME
-		}
-		return nil, fmt.Errorf("MimeRepo.GetByName scan: %w", err)
-	}
-	m := toMIMEType(row)
-	return &m, nil
-}
@@ -1,67 +0,0 @@
-// Package postgres provides the PostgreSQL implementations of the port interfaces.
-package postgres
-
-import (
-	"context"
-	"fmt"
-
-	"github.com/jackc/pgx/v5"
-	"github.com/jackc/pgx/v5/pgxpool"
-
-	"tanabata/backend/internal/db"
-)
-
-// NewPool creates and validates a *pgxpool.Pool from the given connection URL.
-// The pool is ready to use; the caller is responsible for closing it.
-func NewPool(ctx context.Context, url string) (*pgxpool.Pool, error) {
-	pool, err := pgxpool.New(ctx, url)
-	if err != nil {
-		return nil, fmt.Errorf("pgxpool.New: %w", err)
-	}
-	if err := pool.Ping(ctx); err != nil {
-		pool.Close()
-		return nil, fmt.Errorf("postgres ping: %w", err)
-	}
-	return pool, nil
-}
-
-// Transactor implements port.Transactor using a pgxpool.Pool.
-type Transactor struct {
-	pool *pgxpool.Pool
-}
-
-// NewTransactor creates a Transactor backed by pool.
-func NewTransactor(pool *pgxpool.Pool) *Transactor {
-	return &Transactor{pool: pool}
-}
-
-// WithTx begins a transaction, stores it in ctx, and calls fn. If fn returns
-// an error the transaction is rolled back; otherwise it is committed.
-func (t *Transactor) WithTx(ctx context.Context, fn func(ctx context.Context) error) error {
-	tx, err := t.pool.BeginTx(ctx, pgx.TxOptions{})
-	if err != nil {
-		return fmt.Errorf("begin tx: %w", err)
-	}
-
-	txCtx := db.ContextWithTx(ctx, tx)
-
-	if err := fn(txCtx); err != nil {
-		_ = tx.Rollback(ctx)
-		return err
-	}
-
-	if err := tx.Commit(ctx); err != nil {
-		return fmt.Errorf("commit tx: %w", err)
-	}
-	return nil
-}
-
-// connOrTx returns the pgx.Tx stored in ctx by WithTx, or the pool itself when
-// no transaction is active. The returned value satisfies db.Querier and can be
-// used directly for queries and commands.
-func connOrTx(ctx context.Context, pool *pgxpool.Pool) db.Querier {
-	if tx, ok := db.TxFromContext(ctx); ok {
-		return tx
-	}
-	return pool
-}
@@ -1,162 +0,0 @@
-package postgres
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"time"
-
-	"github.com/jackc/pgx/v5"
-	"github.com/jackc/pgx/v5/pgxpool"
-
-	"tanabata/backend/internal/domain"
-	"tanabata/backend/internal/port"
-)
-
-// sessionRow matches the columns stored in activity.sessions.
-// IsCurrent is a service-layer concern and is not stored in the database.
-type sessionRow struct {
-	ID           int        `db:"id"`
-	TokenHash    string     `db:"token_hash"`
-	UserID       int16      `db:"user_id"`
-	UserAgent    string     `db:"user_agent"`
-	StartedAt    time.Time  `db:"started_at"`
-	ExpiresAt    *time.Time `db:"expires_at"`
-	LastActivity time.Time  `db:"last_activity"`
-}
-
-// sessionRowWithTotal extends sessionRow with a window-function count for ListByUser.
-type sessionRowWithTotal struct {
-	sessionRow
-	Total int `db:"total"`
-}
-
-func toSession(r sessionRow) domain.Session {
-	return domain.Session{
-		ID:           r.ID,
-		TokenHash:    r.TokenHash,
-		UserID:       r.UserID,
-		UserAgent:    r.UserAgent,
-		StartedAt:    r.StartedAt,
-		ExpiresAt:    r.ExpiresAt,
-		LastActivity: r.LastActivity,
-	}
-}
-
-// SessionRepo implements port.SessionRepo using PostgreSQL.
-type SessionRepo struct {
-	pool *pgxpool.Pool
-}
-
-// NewSessionRepo creates a SessionRepo backed by pool.
-func NewSessionRepo(pool *pgxpool.Pool) *SessionRepo {
-	return &SessionRepo{pool: pool}
-}
-
-var _ port.SessionRepo = (*SessionRepo)(nil)
-
-func (r *SessionRepo) Create(ctx context.Context, s *domain.Session) (*domain.Session, error) {
-	const sql = `
-		INSERT INTO activity.sessions (token_hash, user_id, user_agent, expires_at)
-		VALUES ($1, $2, $3, $4)
-		RETURNING id, token_hash, user_id, user_agent, started_at, expires_at, last_activity`
-
-	q := connOrTx(ctx, r.pool)
-	rows, err := q.Query(ctx, sql, s.TokenHash, s.UserID, s.UserAgent, s.ExpiresAt)
-	if err != nil {
-		return nil, fmt.Errorf("SessionRepo.Create: %w", err)
-	}
-	row, err := pgx.CollectOneRow(rows, pgx.RowToStructByName[sessionRow])
-	if err != nil {
-		return nil, fmt.Errorf("SessionRepo.Create scan: %w", err)
-	}
-	created := toSession(row)
-	return &created, nil
-}
-
-func (r *SessionRepo) GetByTokenHash(ctx context.Context, hash string) (*domain.Session, error) {
-	const sql = `
-		SELECT id, token_hash, user_id, user_agent, started_at, expires_at, last_activity
-		FROM activity.sessions
-		WHERE token_hash = $1 AND is_active = true`
-
-	q := connOrTx(ctx, r.pool)
-	rows, err := q.Query(ctx, sql, hash)
-	if err != nil {
-		return nil, fmt.Errorf("SessionRepo.GetByTokenHash: %w", err)
-	}
-	row, err := pgx.CollectOneRow(rows, pgx.RowToStructByName[sessionRow])
-	if err != nil {
-		if errors.Is(err, pgx.ErrNoRows) {
-			return nil, domain.ErrNotFound
-		}
-		return nil, fmt.Errorf("SessionRepo.GetByTokenHash scan: %w", err)
-	}
-	s := toSession(row)
-	return &s, nil
-}
-
-func (r *SessionRepo) ListByUser(ctx context.Context, userID int16) (*domain.SessionList, error) {
-	const sql = `
-		SELECT id, token_hash, user_id, user_agent, started_at, expires_at, last_activity,
-		       COUNT(*) OVER() AS total
-		FROM activity.sessions
-		WHERE user_id = $1 AND is_active = true
-		ORDER BY started_at DESC`
-
-	q := connOrTx(ctx, r.pool)
-	rows, err := q.Query(ctx, sql, userID)
-	if err != nil {
-		return nil, fmt.Errorf("SessionRepo.ListByUser: %w", err)
-	}
-	collected, err := pgx.CollectRows(rows, pgx.RowToStructByName[sessionRowWithTotal])
-	if err != nil {
-		return nil, fmt.Errorf("SessionRepo.ListByUser scan: %w", err)
-	}
-
-	list := &domain.SessionList{}
-	if len(collected) > 0 {
-		list.Total = collected[0].Total
-	}
-	list.Items = make([]domain.Session, len(collected))
-	for i, row := range collected {
-		list.Items[i] = toSession(row.sessionRow)
-	}
-	return list, nil
-}
-
-func (r *SessionRepo) UpdateLastActivity(ctx context.Context, id int, t time.Time) error {
-	const sql = `UPDATE activity.sessions SET last_activity = $2 WHERE id = $1`
-	q := connOrTx(ctx, r.pool)
-	tag, err := q.Exec(ctx, sql, id, t)
-	if err != nil {
-		return fmt.Errorf("SessionRepo.UpdateLastActivity: %w", err)
-	}
-	if tag.RowsAffected() == 0 {
-		return domain.ErrNotFound
-	}
-	return nil
-}
-
-func (r *SessionRepo) Delete(ctx context.Context, id int) error {
-	const sql = `UPDATE activity.sessions SET is_active = false WHERE id = $1 AND is_active = true`
-	q := connOrTx(ctx, r.pool)
-	tag, err := q.Exec(ctx, sql, id)
-	if err != nil {
-		return fmt.Errorf("SessionRepo.Delete: %w", err)
-	}
-	if tag.RowsAffected() == 0 {
-		return domain.ErrNotFound
-	}
-	return nil
-}
-
-func (r *SessionRepo) DeleteByUserID(ctx context.Context, userID int16) error {
-	const sql = `UPDATE activity.sessions SET is_active = false WHERE user_id = $1 AND is_active = true`
-	q := connOrTx(ctx, r.pool)
-	_, err := q.Exec(ctx, sql, userID)
-	if err != nil {
-		return fmt.Errorf("SessionRepo.DeleteByUserID: %w", err)
-	}
-	return nil
-}
@@ -1,196 +0,0 @@
-package postgres
-
-import (
-	"context"
-	"errors"
-	"fmt"
-
-	"github.com/jackc/pgx/v5"
-	"github.com/jackc/pgx/v5/pgxpool"
-
-	"tanabata/backend/internal/db"
-	"tanabata/backend/internal/domain"
-	"tanabata/backend/internal/port"
-)
-
-// userRow matches the columns returned by every user SELECT.
-type userRow struct {
-	ID        int16  `db:"id"`
-	Name      string `db:"name"`
-	Password  string `db:"password"`
-	IsAdmin   bool   `db:"is_admin"`
-	CanCreate bool   `db:"can_create"`
-	IsBlocked bool   `db:"is_blocked"`
-}
-
-// userRowWithTotal extends userRow with a window-function total for List.
-type userRowWithTotal struct {
-	userRow
-	Total int `db:"total"`
-}
-
-func toUser(r userRow) domain.User {
-	return domain.User{
-		ID:        r.ID,
-		Name:      r.Name,
-		Password:  r.Password,
-		IsAdmin:   r.IsAdmin,
-		CanCreate: r.CanCreate,
-		IsBlocked: r.IsBlocked,
-	}
-}
-
-// userSortColumn whitelists valid sort keys to prevent SQL injection.
-var userSortColumn = map[string]string{
-	"name": "name",
-	"id":   "id",
-}
-
-// UserRepo implements port.UserRepo using PostgreSQL.
-type UserRepo struct {
-	pool *pgxpool.Pool
-}
-
-// NewUserRepo creates a UserRepo backed by pool.
-func NewUserRepo(pool *pgxpool.Pool) *UserRepo {
-	return &UserRepo{pool: pool}
-}
-
-var _ port.UserRepo = (*UserRepo)(nil)
-
-func (r *UserRepo) List(ctx context.Context, params port.OffsetParams) (*domain.UserPage, error) {
-	col, ok := userSortColumn[params.Sort]
-	if !ok {
-		col = "id"
-	}
-	ord := "ASC"
-	if params.Order == "desc" {
-		ord = "DESC"
-	}
-	limit := db.ClampLimit(params.Limit, 50, 200)
-	offset := db.ClampOffset(params.Offset)
-
-	sql := fmt.Sprintf(`
-		SELECT id, name, password, is_admin, can_create, is_blocked,
-		       COUNT(*) OVER() AS total
-		FROM core.users
-		ORDER BY %s %s
-		LIMIT $1 OFFSET $2`, col, ord)
-
-	q := connOrTx(ctx, r.pool)
-	rows, err := q.Query(ctx, sql, limit, offset)
-	if err != nil {
-		return nil, fmt.Errorf("UserRepo.List: %w", err)
-	}
-	collected, err := pgx.CollectRows(rows, pgx.RowToStructByName[userRowWithTotal])
-	if err != nil {
-		return nil, fmt.Errorf("UserRepo.List scan: %w", err)
-	}
-
-	page := &domain.UserPage{Offset: offset, Limit: limit}
-	if len(collected) > 0 {
-		page.Total = collected[0].Total
-	}
-	page.Items = make([]domain.User, len(collected))
-	for i, row := range collected {
-		page.Items[i] = toUser(row.userRow)
-	}
-	return page, nil
-}
-
-func (r *UserRepo) GetByID(ctx context.Context, id int16) (*domain.User, error) {
-	const sql = `
-		SELECT id, name, password, is_admin, can_create, is_blocked
-		FROM core.users WHERE id = $1`
-
-	q := connOrTx(ctx, r.pool)
-	rows, err := q.Query(ctx, sql, id)
-	if err != nil {
-		return nil, fmt.Errorf("UserRepo.GetByID: %w", err)
-	}
-	row, err := pgx.CollectOneRow(rows, pgx.RowToStructByName[userRow])
-	if err != nil {
-		if errors.Is(err, pgx.ErrNoRows) {
-			return nil, domain.ErrNotFound
-		}
-		return nil, fmt.Errorf("UserRepo.GetByID scan: %w", err)
-	}
-	u := toUser(row)
-	return &u, nil
-}
-
-func (r *UserRepo) GetByName(ctx context.Context, name string) (*domain.User, error) {
-	const sql = `
-		SELECT id, name, password, is_admin, can_create, is_blocked
-		FROM core.users WHERE name = $1`
-
-	q := connOrTx(ctx, r.pool)
-	rows, err := q.Query(ctx, sql, name)
-	if err != nil {
-		return nil, fmt.Errorf("UserRepo.GetByName: %w", err)
-	}
-	row, err := pgx.CollectOneRow(rows, pgx.RowToStructByName[userRow])
-	if err != nil {
-		if errors.Is(err, pgx.ErrNoRows) {
-			return nil, domain.ErrNotFound
-		}
-		return nil, fmt.Errorf("UserRepo.GetByName scan: %w", err)
-	}
-	u := toUser(row)
-	return &u, nil
-}
-
-func (r *UserRepo) Create(ctx context.Context, u *domain.User) (*domain.User, error) {
-	const sql = `
-		INSERT INTO core.users (name, password, is_admin, can_create)
-		VALUES ($1, $2, $3, $4)
-		RETURNING id, name, password, is_admin, can_create, is_blocked`
-
-	q := connOrTx(ctx, r.pool)
-	rows, err := q.Query(ctx, sql, u.Name, u.Password, u.IsAdmin, u.CanCreate)
-	if err != nil {
-		return nil, fmt.Errorf("UserRepo.Create: %w", err)
-	}
-	row, err := pgx.CollectOneRow(rows, pgx.RowToStructByName[userRow])
-	if err != nil {
-		return nil, fmt.Errorf("UserRepo.Create scan: %w", err)
-	}
-	created := toUser(row)
-	return &created, nil
-}
-
-func (r *UserRepo) Update(ctx context.Context, id int16, u *domain.User) (*domain.User, error) {
-	const sql = `
-		UPDATE core.users
-		SET name = $2, password = $3, is_admin = $4, can_create = $5
-		WHERE id = $1
-		RETURNING id, name, password, is_admin, can_create, is_blocked`
-
-	q := connOrTx(ctx, r.pool)
-	rows, err := q.Query(ctx, sql, id, u.Name, u.Password, u.IsAdmin, u.CanCreate)
-	if err != nil {
-		return nil, fmt.Errorf("UserRepo.Update: %w", err)
-	}
-	row, err := pgx.CollectOneRow(rows, pgx.RowToStructByName[userRow])
-	if err != nil {
-		if errors.Is(err, pgx.ErrNoRows) {
-			return nil, domain.ErrNotFound
-		}
-		return nil, fmt.Errorf("UserRepo.Update scan: %w", err)
-	}
-	updated := toUser(row)
-	return &updated, nil
-}
-
-func (r *UserRepo) Delete(ctx context.Context, id int16) error {
-	const sql = `DELETE FROM core.users WHERE id = $1`
-	q := connOrTx(ctx, r.pool)
-	tag, err := q.Exec(ctx, sql, id)
-	if err != nil {
-		return fmt.Errorf("UserRepo.Delete: %w", err)
-	}
-	if tag.RowsAffected() == 0 {
-		return domain.ErrNotFound
-	}
-	return nil
-}
@@ -1,19 +0,0 @@
-package domain
-
-import "github.com/google/uuid"
-
-// ObjectType is a reference entity (file, tag, category, pool).
-type ObjectType struct {
-	ID   int16
-	Name string
-}
-
-// Permission represents a per-object access entry for a user.
-type Permission struct {
-	UserID        int16
-	UserName      string // denormalized
-	ObjectTypeID  int16
-	ObjectID      uuid.UUID
-	CanView       bool
-	CanEdit       bool
-}
@@ -1,46 +0,0 @@
-package domain
-
-import (
-	"encoding/json"
-	"time"
-
-	"github.com/google/uuid"
-)
-
-// ActionType is a reference entity for auditable user actions.
-type ActionType struct {
-	ID   int16
-	Name string
-}
-
-// AuditEntry is a single audit log record.
-type AuditEntry struct {
-	ID           int64
-	UserID       int16
-	UserName     string // denormalized
-	Action       string // action type name, e.g. "file_create"
-	ObjectType   *string
-	ObjectID     *uuid.UUID
-	Details      json.RawMessage
-	PerformedAt  time.Time
-}
-
-// AuditPage is an offset-based page of audit log entries.
-type AuditPage struct {
-	Items  []AuditEntry
-	Total  int
-	Offset int
-	Limit  int
-}
-
-// AuditFilter holds filter parameters for querying the audit log.
-type AuditFilter struct {
-	UserID     *int16
-	Action     string
-	ObjectType string
-	ObjectID   *uuid.UUID
-	From       *time.Time
-	To         *time.Time
-	Offset     int
-	Limit      int
-}
@@ -1,29 +0,0 @@
-package domain
-
-import (
-	"encoding/json"
-	"time"
-
-	"github.com/google/uuid"
-)
-
-// Category is a logical grouping of tags.
-type Category struct {
-	ID          uuid.UUID
-	Name        string
-	Notes       *string
-	Color       *string // 6-char hex
-	Metadata    json.RawMessage
-	CreatorID   int16
-	CreatorName string // denormalized
-	IsPublic    bool
-	CreatedAt   time.Time // extracted from UUID v7 via UUIDCreatedAt
-}
-
-// CategoryOffsetPage is an offset-based page of categories.
-type CategoryOffsetPage struct {
-	Items  []Category
-	Total  int
-	Offset int
-	Limit  int
-}
@@ -1,32 +0,0 @@
-package domain
-
-import "context"
-
-type ctxKey int
-
-const userKey ctxKey = iota
-
-type contextUser struct {
-	ID        int16
-	IsAdmin   bool
-	SessionID int
-}
-
-// WithUser stores user identity and current session ID in ctx.
-func WithUser(ctx context.Context, userID int16, isAdmin bool, sessionID int) context.Context {
-	return context.WithValue(ctx, userKey, contextUser{
-		ID:        userID,
-		IsAdmin:   isAdmin,
-		SessionID: sessionID,
-	})
-}
-
-// UserFromContext retrieves user identity from ctx.
-// Returns zero values if no user is stored.
-func UserFromContext(ctx context.Context) (userID int16, isAdmin bool, sessionID int) {
-	u, ok := ctx.Value(userKey).(contextUser)
-	if !ok {
-		return 0, false, 0
-	}
-	return u.ID, u.IsAdmin, u.SessionID
-}
@@ -3,8 +3,6 @@ package domain
 import (
 	"encoding/json"
 	"time"
-
-	"github.com/jackc/pgx/v5/pgtype"
 )

 type User struct {
@@ -20,26 +18,26 @@ type MIME struct {

 type (
 	CategoryCore struct {
-		ID    string      `json:"id"`
-		Name  string      `json:"name"`
-		Color pgtype.Text `json:"color"`
+		ID    *string `json:"id"`
+		Name  *string `json:"name"`
+		Color *string `json:"color"`
 	}
 	CategoryItem struct {
 		CategoryCore
 	}
 	CategoryFull struct {
 		CategoryCore
-		CreatedAt time.Time   `json:"createdAt"`
-		Creator   User        `json:"creator"`
-		Notes     pgtype.Text `json:"notes"`
+		CreatedAt time.Time `json:"createdAt"`
+		Creator   User      `json:"creator"`
+		Notes     *string   `json:"notes"`
 	}
 )

 type (
 	FileCore struct {
-		ID   string      `json:"id"`
-		Name pgtype.Text `json:"name"`
-		MIME MIME        `json:"mime"`
+		ID   string  `json:"id"`
+		Name *string `json:"name"`
+		MIME MIME    `json:"mime"`
 	}
 	FileItem struct {
 		FileCore
@@ -50,18 +48,17 @@ type (
 		FileCore
 		CreatedAt time.Time       `json:"createdAt"`
 		Creator   User            `json:"creator"`
-		Notes     pgtype.Text     `json:"notes"`
+		Notes     *string         `json:"notes"`
 		Metadata  json.RawMessage `json:"metadata"`
-		Tags      []TagCore       `json:"tags"`
 		Viewed    int             `json:"viewed"`
 	}
 )

 type (
 	TagCore struct {
-		ID    string      `json:"id"`
-		Name  string      `json:"name"`
-		Color pgtype.Text `json:"color"`
+		ID    string  `json:"id"`
+		Name  string  `json:"name"`
+		Color *string `json:"color"`
 	}
 	TagItem struct {
 		TagCore
@@ -72,7 +69,7 @@ type (
 		Category  CategoryCore `json:"category"`
 		CreatedAt time.Time    `json:"createdAt"`
 		Creator   User         `json:"creator"`
-		Notes     pgtype.Text  `json:"notes"`
+		Notes     *string      `json:"notes"`
 		UsedIncl  int          `json:"usedIncl"`
 		UsedExcl  int          `json:"usedExcl"`
 	}
@@ -94,10 +91,10 @@ type (
 	}
 	PoolFull struct {
 		PoolCore
-		CreatedAt time.Time   `json:"createdAt"`
-		Creator   User        `json:"creator"`
-		Notes     pgtype.Text `json:"notes"`
-		Viewed    int         `json:"viewed"`
+		CreatedAt time.Time `json:"createdAt"`
+		Creator   User      `json:"creator"`
+		Notes     *string   `json:"notes"`
+		Viewed    int       `json:"viewed"`
 	}
 )

@@ -1,21 +1,65 @@
 package domain

-// DomainError is a typed domain error with a stable machine-readable code.
-// Handlers map these codes to HTTP status codes.
+import "fmt"
+
+type ErrorCode string
+
+const (
+	// File errors
+	ErrCodeFileNotFound     ErrorCode = "FILE_NOT_FOUND"
+	ErrCodeMIMENotSupported ErrorCode = "MIME_NOT_SUPPORTED"
+
+	// Tag errors
+	ErrCodeTagNotFound ErrorCode = "TAG_NOT_FOUND"
+
+	// General errors
+	ErrCodeBadRequest ErrorCode = "BAD_REQUEST"
+	ErrCodeInternal   ErrorCode = "INTERNAL_SERVER_ERROR"
+)
+
 type DomainError struct {
-	code    string
-	message string
+	Err     error     `json:"-"`
+	Code    ErrorCode `json:"code"`
+	Message string    `json:"message"`
+	Details []any     `json:"-"`
 }

-func (e *DomainError) Error() string { return e.message }
-func (e *DomainError) Code() string  { return e.code }
+func (e *DomainError) Wrap(err error) *DomainError {
+	e.Err = err
+	return e
+}

-// Sentinel domain errors. Use errors.Is(err, domain.ErrNotFound) for matching.
-var (
-	ErrNotFound        = &DomainError{"not_found", "not found"}
-	ErrForbidden       = &DomainError{"forbidden", "forbidden"}
-	ErrUnauthorized    = &DomainError{"unauthorized", "unauthorized"}
-	ErrConflict        = &DomainError{"conflict", "conflict"}
-	ErrValidation      = &DomainError{"validation_error", "validation error"}
-	ErrUnsupportedMIME = &DomainError{"unsupported_mime", "unsupported MIME type"}
-)
+func NewErrorFileNotFound(file_id string) *DomainError {
+	return &DomainError{
+		Code:    ErrCodeFileNotFound,
+		Message: fmt.Sprintf("File not found: %q", file_id),
+	}
+}
+
+func NewErrorMIMENotSupported(mime string) *DomainError {
+	return &DomainError{
+		Code:    ErrCodeMIMENotSupported,
+		Message: fmt.Sprintf("MIME not supported: %q", mime),
+	}
+}
+
+func NewErrorTagNotFound(tag_id string) *DomainError {
+	return &DomainError{
+		Code:    ErrCodeTagNotFound,
+		Message: fmt.Sprintf("Tag not found: %q", tag_id),
+	}
+}
+
+func NewErrorBadRequest(message string) *DomainError {
+	return &DomainError{
+		Code:    ErrCodeBadRequest,
+		Message: message,
+	}
+}
+
+func NewErrorUnexpected() *DomainError {
+	return &DomainError{
+		Code:    ErrCodeInternal,
+		Message: "An unexpected error occured",
+	}
+}
@@ -1,67 +0,0 @@
-package domain
-
-import (
-	"encoding/json"
-	"time"
-
-	"github.com/google/uuid"
-)
-
-// MIMEType holds MIME whitelist data.
-type MIMEType struct {
-	ID        int16
-	Name      string
-	Extension string
-}
-
-// File represents a managed file record.
-type File struct {
-	ID              uuid.UUID
-	OriginalName    *string
-	MIMEType        string // denormalized from core.mime_types
-	MIMEExtension   string // denormalized from core.mime_types
-	ContentDatetime time.Time
-	Notes           *string
-	Metadata        json.RawMessage
-	EXIF            json.RawMessage
-	PHash           *int64
-	CreatorID       int16
-	CreatorName     string // denormalized from core.users
-	IsPublic        bool
-	IsDeleted       bool
-	CreatedAt       time.Time // extracted from UUID v7 via UUIDCreatedAt
-	Tags            []Tag     // loaded with the file
-}
-
-// FileListParams holds all parameters for listing/filtering files.
-type FileListParams struct {
-	// Pagination
-	Cursor    string
-	Direction string // "forward" or "backward"
-	Anchor    *uuid.UUID
-	Limit     int
-
-	// Sorting
-	Sort  string // "content_datetime" | "created" | "original_name" | "mime"
-	Order string // "asc" | "desc"
-
-	// Filtering
-	Filter string // filter DSL expression
-	Search string // substring match on original_name
-	Trash  bool   // if true, return only soft-deleted files
-}
-
-// FilePage is the result of a cursor-based file listing.
-type FilePage struct {
-	Items      []File
-	NextCursor *string
-	PrevCursor *string
-}
-
-// UUIDCreatedAt extracts the creation timestamp embedded in a UUID v7.
-// UUID v7 stores Unix milliseconds in the most-significant 48 bits.
-func UUIDCreatedAt(id uuid.UUID) time.Time {
-	ms := int64(id[0])<<40 | int64(id[1])<<32 | int64(id[2])<<24 |
-		int64(id[3])<<16 | int64(id[4])<<8 | int64(id[5])
-	return time.Unix(ms/1000, (ms%1000)*int64(time.Millisecond)).UTC()
-}
@@ -1,41 +0,0 @@
-package domain
-
-import (
-	"encoding/json"
-	"time"
-
-	"github.com/google/uuid"
-)
-
-// Pool is an ordered collection of files.
-type Pool struct {
-	ID          uuid.UUID
-	Name        string
-	Notes       *string
-	Metadata    json.RawMessage
-	CreatorID   int16
-	CreatorName string // denormalized
-	IsPublic    bool
-	FileCount   int
-	CreatedAt   time.Time // extracted from UUID v7 via UUIDCreatedAt
-}
-
-// PoolFile is a File with its ordering position within a pool.
-type PoolFile struct {
-	File
-	Position int
-}
-
-// PoolFilePage is the result of a cursor-based pool file listing.
-type PoolFilePage struct {
-	Items      []PoolFile
-	NextCursor *string
-}
-
-// PoolOffsetPage is an offset-based page of pools.
-type PoolOffsetPage struct {
-	Items  []Pool
-	Total  int
-	Offset int
-	Limit  int
-}
@@ -0,0 +1,17 @@
+package domain
+
+import (
+	"context"
+	"encoding/json"
+	"time"
+)
+
+type FileRepository interface {
+	GetAccess(ctx context.Context, user_id int, file_id string) (canView, canEdit bool, domainErr *DomainError)
+	GetSlice(ctx context.Context, user_id int, filter, sort string, limit, offset int) (files Slice[FileItem], domainErr *DomainError)
+	Get(ctx context.Context, user_id int, file_id string) (file FileFull, domainErr *DomainError)
+	Add(ctx context.Context, user_id int, name, mime string, datetime time.Time, notes string, metadata json.RawMessage) (file FileCore, domainErr *DomainError)
+	Update(ctx context.Context, file_id string, updates map[string]interface{}) (domainErr *DomainError)
+	Delete(ctx context.Context, file_id string) (domainErr *DomainError)
+	GetTags(ctx context.Context, user_id int, file_id string) (tags []TagItem, domainErr *DomainError)
+}
@@ -1,41 +0,0 @@
-package domain
-
-import (
-	"encoding/json"
-	"time"
-
-	"github.com/google/uuid"
-)
-
-// Tag represents a file label.
-type Tag struct {
-	ID            uuid.UUID
-	Name          string
-	Notes         *string
-	Color         *string // 6-char hex, e.g. "5DCAA5"
-	CategoryID    *uuid.UUID
-	CategoryName  *string // denormalized
-	CategoryColor *string // denormalized
-	Metadata      json.RawMessage
-	CreatorID     int16
-	CreatorName   string // denormalized
-	IsPublic      bool
-	CreatedAt     time.Time // extracted from UUID v7 via UUIDCreatedAt
-}
-
-// TagRule defines an auto-tagging rule: when WhenTagID is applied,
-// ThenTagID is automatically applied as well.
-type TagRule struct {
-	WhenTagID   uuid.UUID
-	ThenTagID   uuid.UUID
-	ThenTagName string // denormalized
-	IsActive    bool
-}
-
-// TagOffsetPage is an offset-based page of tags.
-type TagOffsetPage struct {
-	Items  []Tag
-	Total  int
-	Offset int
-	Limit  int
-}
@@ -1,39 +0,0 @@
-package domain
-
-import "time"
-
-// User is an application user.
-type User struct {
-	ID        int16
-	Name      string
-	Password  string // bcrypt hash; only populated when needed for auth
-	IsAdmin   bool
-	CanCreate bool
-	IsBlocked bool
-}
-
-// Session is an active user session.
-type Session struct {
-	ID           int
-	TokenHash    string
-	UserID       int16
-	UserAgent    string
-	StartedAt    time.Time
-	ExpiresAt    *time.Time
-	LastActivity time.Time
-	IsCurrent    bool // true when this session matches the caller's token
-}
-
-// UserPage is an offset-based page of users.
-type UserPage struct {
-	Items  []User
-	Total  int
-	Offset int
-	Limit  int
-}
-
-// SessionList is a list of sessions with a total count.
-type SessionList struct {
-	Items []Session
-	Total int
-}
@@ -1,140 +0,0 @@
-package handler
-
-import (
-	"net/http"
-	"strconv"
-
-	"github.com/gin-gonic/gin"
-
-	"tanabata/backend/internal/domain"
-	"tanabata/backend/internal/service"
-)
-
-// AuthHandler handles all /auth endpoints.
-type AuthHandler struct {
-	authSvc *service.AuthService
-}
-
-// NewAuthHandler creates an AuthHandler backed by authSvc.
-func NewAuthHandler(authSvc *service.AuthService) *AuthHandler {
-	return &AuthHandler{authSvc: authSvc}
-}
-
-// Login handles POST /auth/login.
-func (h *AuthHandler) Login(c *gin.Context) {
-	var req struct {
-		Name     string `json:"name"     binding:"required"`
-		Password string `json:"password" binding:"required"`
-	}
-	if err := c.ShouldBindJSON(&req); err != nil {
-		respondError(c, domain.ErrValidation)
-		return
-	}
-
-	pair, err := h.authSvc.Login(c.Request.Context(), req.Name, req.Password, c.GetHeader("User-Agent"))
-	if err != nil {
-		respondError(c, err)
-		return
-	}
-
-	respondJSON(c, http.StatusOK, gin.H{
-		"access_token":  pair.AccessToken,
-		"refresh_token": pair.RefreshToken,
-		"expires_in":    pair.ExpiresIn,
-	})
-}
-
-// Refresh handles POST /auth/refresh.
-func (h *AuthHandler) Refresh(c *gin.Context) {
-	var req struct {
-		RefreshToken string `json:"refresh_token" binding:"required"`
-	}
-	if err := c.ShouldBindJSON(&req); err != nil {
-		respondError(c, domain.ErrValidation)
-		return
-	}
-
-	pair, err := h.authSvc.Refresh(c.Request.Context(), req.RefreshToken, c.GetHeader("User-Agent"))
-	if err != nil {
-		respondError(c, err)
-		return
-	}
-
-	respondJSON(c, http.StatusOK, gin.H{
-		"access_token":  pair.AccessToken,
-		"refresh_token": pair.RefreshToken,
-		"expires_in":    pair.ExpiresIn,
-	})
-}
-
-// Logout handles POST /auth/logout. Requires authentication.
-func (h *AuthHandler) Logout(c *gin.Context) {
-	_, _, sessionID := domain.UserFromContext(c.Request.Context())
-
-	if err := h.authSvc.Logout(c.Request.Context(), sessionID); err != nil {
-		respondError(c, err)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
-
-// ListSessions handles GET /auth/sessions. Requires authentication.
-func (h *AuthHandler) ListSessions(c *gin.Context) {
-	userID, _, sessionID := domain.UserFromContext(c.Request.Context())
-
-	list, err := h.authSvc.ListSessions(c.Request.Context(), userID, sessionID)
-	if err != nil {
-		respondError(c, err)
-		return
-	}
-
-	type sessionItem struct {
-		ID           int    `json:"id"`
-		UserAgent    string `json:"user_agent"`
-		StartedAt    string `json:"started_at"`
-		ExpiresAt    any    `json:"expires_at"`
-		LastActivity string `json:"last_activity"`
-		IsCurrent    bool   `json:"is_current"`
-	}
-
-	items := make([]sessionItem, len(list.Items))
-	for i, s := range list.Items {
-		var expiresAt any
-		if s.ExpiresAt != nil {
-			expiresAt = s.ExpiresAt.Format("2006-01-02T15:04:05Z07:00")
-		}
-		items[i] = sessionItem{
-			ID:           s.ID,
-			UserAgent:    s.UserAgent,
-			StartedAt:    s.StartedAt.Format("2006-01-02T15:04:05Z07:00"),
-			ExpiresAt:    expiresAt,
-			LastActivity: s.LastActivity.Format("2006-01-02T15:04:05Z07:00"),
-			IsCurrent:    s.IsCurrent,
-		}
-	}
-
-	respondJSON(c, http.StatusOK, gin.H{
-		"items": items,
-		"total": list.Total,
-	})
-}
-
-// TerminateSession handles DELETE /auth/sessions/:id. Requires authentication.
-func (h *AuthHandler) TerminateSession(c *gin.Context) {
-	idStr := c.Param("id")
-	id, err := strconv.Atoi(idStr)
-	if err != nil {
-		respondError(c, domain.ErrValidation)
-		return
-	}
-
-	userID, isAdmin, _ := domain.UserFromContext(c.Request.Context())
-
-	if err := h.authSvc.TerminateSession(c.Request.Context(), userID, isAdmin, id); err != nil {
-		respondError(c, err)
-		return
-	}
-
-	c.Status(http.StatusNoContent)
-}
@@ -1,52 +0,0 @@
-package handler
-
-import (
-	"net/http"
-	"strings"
-
-	"github.com/gin-gonic/gin"
-
-	"tanabata/backend/internal/domain"
-	"tanabata/backend/internal/service"
-)
-
-// AuthMiddleware validates Bearer JWTs and injects user identity into context.
-type AuthMiddleware struct {
-	authSvc *service.AuthService
-}
-
-// NewAuthMiddleware creates an AuthMiddleware backed by authSvc.
-func NewAuthMiddleware(authSvc *service.AuthService) *AuthMiddleware {
-	return &AuthMiddleware{authSvc: authSvc}
-}
-
-// Handle returns a Gin handler function that enforces authentication.
-// On success it calls c.Next(); on failure it aborts with 401 JSON.
-func (m *AuthMiddleware) Handle() gin.HandlerFunc {
-	return func(c *gin.Context) {
-		raw := c.GetHeader("Authorization")
-		if !strings.HasPrefix(raw, "Bearer ") {
-			c.JSON(http.StatusUnauthorized, errorBody{
-				Code:    domain.ErrUnauthorized.Code(),
-				Message: "authorization header missing or malformed",
-			})
-			c.Abort()
-			return
-		}
-		token := strings.TrimPrefix(raw, "Bearer ")
-
-		claims, err := m.authSvc.ParseAccessToken(token)
-		if err != nil {
-			c.JSON(http.StatusUnauthorized, errorBody{
-				Code:    domain.ErrUnauthorized.Code(),
-				Message: "invalid or expired token",
-			})
-			c.Abort()
-			return
-		}
-
-		ctx := domain.WithUser(c.Request.Context(), claims.UserID, claims.IsAdmin, claims.SessionID)
-		c.Request = c.Request.WithContext(ctx)
-		c.Next()
-	}
-}
@@ -1,55 +0,0 @@
-package handler
-
-import (
-	"errors"
-	"net/http"
-
-	"github.com/gin-gonic/gin"
-
-	"tanabata/backend/internal/domain"
-)
-
-// errorBody is the JSON shape returned for all error responses.
-type errorBody struct {
-	Code    string `json:"code"`
-	Message string `json:"message"`
-}
-
-func respondJSON(c *gin.Context, status int, data any) {
-	c.JSON(status, data)
-}
-
-// respondError maps a domain error to the appropriate HTTP status and writes
-// a JSON error body. Unknown errors become 500.
-func respondError(c *gin.Context, err error) {
-	var de *domain.DomainError
-	if errors.As(err, &de) {
-		c.JSON(domainStatus(de), errorBody{Code: de.Code(), Message: de.Error()})
-		return
-	}
-	c.JSON(http.StatusInternalServerError, errorBody{
-		Code:    "internal_error",
-		Message: "internal server error",
-	})
-}
-
-// domainStatus maps a DomainError sentinel to its HTTP status code per the
-// error mapping table in docs/GO_PROJECT_STRUCTURE.md.
-func domainStatus(de *domain.DomainError) int {
-	switch de {
-	case domain.ErrNotFound:
-		return http.StatusNotFound
-	case domain.ErrForbidden:
-		return http.StatusForbidden
-	case domain.ErrUnauthorized:
-		return http.StatusUnauthorized
-	case domain.ErrConflict:
-		return http.StatusConflict
-	case domain.ErrValidation:
-		return http.StatusBadRequest
-	case domain.ErrUnsupportedMIME:
-		return http.StatusUnsupportedMediaType
-	default:
-		return http.StatusInternalServerError
-	}
-}
@@ -1,37 +0,0 @@
-package handler
-
-import (
-	"net/http"
-
-	"github.com/gin-gonic/gin"
-)
-
-// NewRouter builds and returns a configured Gin engine.
-// Additional handlers will be added here as they are implemented.
-func NewRouter(auth *AuthMiddleware, authHandler *AuthHandler) *gin.Engine {
-	r := gin.New()
-	r.Use(gin.Logger(), gin.Recovery())
-
-	// Health check — no auth required.
-	r.GET("/health", func(c *gin.Context) {
-		c.JSON(http.StatusOK, gin.H{"status": "ok"})
-	})
-
-	v1 := r.Group("/api/v1")
-
-	// Auth endpoints — login and refresh are public; others require a valid token.
-	authGroup := v1.Group("/auth")
-	{
-		authGroup.POST("/login", authHandler.Login)
-		authGroup.POST("/refresh", authHandler.Refresh)
-
-		protected := authGroup.Group("", auth.Handle())
-		{
-			protected.POST("/logout", authHandler.Logout)
-			protected.GET("/sessions", authHandler.ListSessions)
-			protected.DELETE("/sessions/:id", authHandler.TerminateSession)
-		}
-	}
-
-	return r
-}
@@ -0,0 +1,54 @@
+package postgres
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgxpool"
+
+	"tanabata/internal/domain"
+)
+
+// Initialize PostgreSQL database driver
+func New(dbURL string) (*pgxpool.Pool, error) {
+	poolConfig, err := pgxpool.ParseConfig(dbURL)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse connection string: %w", err)
+	}
+
+	poolConfig.MaxConns = 100
+	poolConfig.MinConns = 0
+	poolConfig.MaxConnLifetime = time.Hour
+	poolConfig.HealthCheckPeriod = 30 * time.Second
+
+	ctx := context.Background()
+	db, err := pgxpool.NewWithConfig(ctx, poolConfig)
+	if err != nil {
+		return nil, fmt.Errorf("failed to initialize DB connections pool: %w", err)
+	}
+	if err = db.Ping(ctx); err != nil {
+		return nil, fmt.Errorf("failed to ping database: %w", err)
+	}
+	return db, nil
+}
+
+// Transaction wrapper
+func transaction(ctx context.Context, db *pgxpool.Pool, handler func(context.Context, pgx.Tx) *domain.DomainError) (domainErr *domain.DomainError) {
+	tx, err := db.Begin(ctx)
+	if err != nil {
+		domainErr = domain.NewErrorUnexpected().Wrap(err)
+		return
+	}
+	domainErr = handler(ctx, tx)
+	if domainErr != nil {
+		tx.Rollback(ctx)
+		return
+	}
+	err = tx.Commit(ctx)
+	if err != nil {
+		domainErr = domain.NewErrorUnexpected().Wrap(err)
+	}
+	return
+}
@@ -0,0 +1,331 @@
+package postgres
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+	"github.com/jackc/pgx/v5/pgxpool"
+
+	"tanabata/internal/domain"
+)
+
+type FileRepository struct {
+	db *pgxpool.Pool
+}
+
+func NewFileRepository(db *pgxpool.Pool) *FileRepository {
+	return &FileRepository{db: db}
+}
+
+// Get user permissions on file
+func (s *FileRepository) GetAccess(ctx context.Context, user_id int, file_id string) (canView, canEdit bool, domainErr *domain.DomainError) {
+	row := s.db.QueryRow(ctx, `
+		SELECT 
+			COALESCE(a.view, FALSE) OR f.creator_id=$1 OR COALESCE(u.is_admin, FALSE),
+			COALESCE(a.edit, FALSE) OR f.creator_id=$1 OR COALESCE(u.is_admin, FALSE)
+		FROM data.files f
+		LEFT JOIN acl.files a ON a.file_id=f.id AND a.user_id=$1
+		LEFT JOIN system.users u ON u.id=$1
+		WHERE f.id=$2
+		`, user_id, file_id)
+	err := row.Scan(&canView, &canEdit)
+	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			domainErr = domain.NewErrorFileNotFound(file_id).Wrap(err)
+			return
+		}
+		var pgErr *pgconn.PgError
+		if errors.As(err, &pgErr) {
+			switch pgErr.Code {
+			case "22P02":
+				domainErr = domain.NewErrorBadRequest(fmt.Sprintf("Invalid file id: %q", file_id)).Wrap(err)
+				return
+			}
+		}
+		domainErr = domain.NewErrorUnexpected().Wrap(err)
+	}
+	return
+}
+
+// Get a set of files
+func (s *FileRepository) GetSlice(ctx context.Context, user_id int, filter, sort string, limit, offset int) (files domain.Slice[domain.FileItem], domainErr *domain.DomainError) {
+	filterCond, err := filterToSQL(filter)
+	if err != nil {
+		domainErr = domain.NewErrorBadRequest(fmt.Sprintf("Invalid filter string: %q", filter)).Wrap(err)
+		return
+	}
+	sortExpr, err := sortToSQL(sort)
+	if err != nil {
+		domainErr = domain.NewErrorBadRequest(fmt.Sprintf("Invalid sorting parameter: %q", sort)).Wrap(err)
+		return
+	}
+	// prepare query
+	query := `
+		SELECT
+			f.id,
+			f.name,
+			m.name,
+			m.extension,
+			uuid_extract_timestamp(f.id),
+			u.name,
+			u.is_admin
+		FROM data.files f
+		JOIN system.mime m ON m.id=f.mime_id
+		JOIN system.users u ON u.id=f.creator_id
+		WHERE f.is_deleted IS FALSE AND (f.creator_id=$1 OR (SELECT view FROM acl.files WHERE file_id=f.id AND user_id=$1) OR (SELECT is_admin FROM system.users WHERE id=$1)) AND
+	`
+	query += filterCond
+	queryCount := query
+	query += sortExpr
+	if limit >= 0 {
+		query += fmt.Sprintf(" LIMIT %d", limit)
+	}
+	if offset > 0 {
+		query += fmt.Sprintf(" OFFSET %d", offset)
+	}
+	// execute query
+	domainErr = transaction(ctx, s.db, func(ctx context.Context, tx pgx.Tx) (domainErr *domain.DomainError) {
+		rows, err := tx.Query(ctx, query, user_id)
+		if err != nil && !errors.Is(err, pgx.ErrNoRows) {
+			var pgErr *pgconn.PgError
+			if errors.As(err, &pgErr) {
+				switch pgErr.Code {
+				case "42P10":
+					domainErr = domain.NewErrorBadRequest(fmt.Sprintf("Invalid sorting field: %q", sort[1:])).Wrap(err)
+					return
+				}
+			}
+			domainErr = domain.NewErrorUnexpected().Wrap(err)
+			return
+		}
+		defer rows.Close()
+		count := 0
+		for rows.Next() {
+			var file domain.FileItem
+			err = rows.Scan(&file.ID, &file.Name, &file.MIME.Name, &file.MIME.Extension, &file.CreatedAt, &file.Creator.Name, &file.Creator.IsAdmin)
+			if err != nil {
+				domainErr = domain.NewErrorUnexpected().Wrap(err)
+				return
+			}
+			files.Data = append(files.Data, file)
+			count++
+		}
+		err = rows.Err()
+		if err != nil {
+			domainErr = domain.NewErrorUnexpected().Wrap(err)
+			return
+		}
+		files.Pagination.Limit = limit
+		files.Pagination.Offset = offset
+		files.Pagination.Count = count
+		row := tx.QueryRow(ctx, fmt.Sprintf("SELECT COUNT(*) FROM (%s) tmp", queryCount), user_id)
+		err = row.Scan(&files.Pagination.Total)
+		if err != nil {
+			domainErr = domain.NewErrorUnexpected().Wrap(err)
+		}
+		return
+	})
+	return
+}
+
+// Get file
+func (s *FileRepository) Get(ctx context.Context, user_id int, file_id string) (file domain.FileFull, domainErr *domain.DomainError) {
+	row := s.db.QueryRow(ctx, `
+		SELECT
+			f.id,
+			f.name,
+			m.name,
+			m.extension,
+			uuid_extract_timestamp(f.id),
+			u.name,
+			u.is_admin,
+			f.notes,
+			f.metadata,
+			(SELECT COUNT(*) FROM activity.file_views fv WHERE fv.file_id=$2 AND fv.user_id=$1)
+		FROM data.files f
+		JOIN system.mime m ON m.id=f.mime_id
+		JOIN system.users u ON u.id=f.creator_id
+		WHERE f.is_deleted IS FALSE
+		`, user_id, file_id)
+	err := row.Scan(&file.ID, &file.Name, &file.MIME.Name, &file.MIME.Extension, &file.CreatedAt, &file.Creator.Name, &file.Creator.IsAdmin, &file.Notes, &file.Metadata, &file.Viewed)
+	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			domainErr = domain.NewErrorFileNotFound(file_id).Wrap(err)
+			return
+		}
+		var pgErr *pgconn.PgError
+		if errors.As(err, &pgErr) {
+			switch pgErr.Code {
+			case "22P02":
+				domainErr = domain.NewErrorBadRequest(fmt.Sprintf("Invalid file id: %q", file_id)).Wrap(err)
+				return
+			}
+		}
+		domainErr = domain.NewErrorUnexpected().Wrap(err)
+		return
+	}
+	return
+}
+
+// Add file
+func (s *FileRepository) Add(ctx context.Context, user_id int, name, mime string, datetime time.Time, notes string, metadata json.RawMessage) (file domain.FileCore, domainErr *domain.DomainError) {
+	var mime_id int
+	var extension string
+	row := s.db.QueryRow(ctx, "SELECT id, extension FROM system.mime WHERE name=$1", mime)
+	err := row.Scan(&mime_id, &extension)
+	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			domainErr = domain.NewErrorMIMENotSupported(mime).Wrap(err)
+			return
+		}
+		domainErr = domain.NewErrorUnexpected().Wrap(err)
+		return
+	}
+	row = s.db.QueryRow(ctx, `
+		INSERT INTO data.files (name, mime_id, datetime, creator_id, notes, metadata)
+		VALUES (NULLIF($1, ''), $2, $3, $4, NULLIF($5 ,''), $6)
+		RETURNING id
+		`, name, mime_id, datetime, user_id, notes, metadata)
+	err = row.Scan(&file.ID)
+	if err != nil {
+		var pgErr *pgconn.PgError
+		if errors.As(err, &pgErr) {
+			switch pgErr.Code {
+			case "22007":
+				domainErr = domain.NewErrorBadRequest(fmt.Sprintf("Invalid datetime: %q", datetime)).Wrap(err)
+				return
+			case "23502":
+				domainErr = domain.NewErrorBadRequest("Unable to set NULL to some fields").Wrap(err)
+				return
+			}
+		}
+		domainErr = domain.NewErrorUnexpected().Wrap(err)
+		return
+	}
+	file.Name = &name
+	file.MIME.Name = mime
+	file.MIME.Extension = extension
+	return
+}
+
+// Update file
+func (s *FileRepository) Update(ctx context.Context, file_id string, updates map[string]interface{}) (domainErr *domain.DomainError) {
+	if len(updates) == 0 {
+		// domainErr = domain.NewErrorBadRequest(nil, "No fields provided for update")
+		return
+	}
+	query := "UPDATE data.files SET"
+	newValues := []interface{}{file_id}
+	count := 2
+	for field, value := range updates {
+		switch field {
+		case "name", "notes":
+			query += fmt.Sprintf(" %s=NULLIF($%d, '')", field, count)
+		case "datetime":
+			query += fmt.Sprintf(" %s=NULLIF($%d, '')::timestamptz", field, count)
+		case "metadata":
+			query += fmt.Sprintf(" %s=NULLIF($%d, '')::jsonb", field, count)
+		default:
+			domainErr = domain.NewErrorBadRequest(fmt.Sprintf("Unknown field: %q", field))
+			return
+		}
+		newValues = append(newValues, value)
+		count++
+	}
+	query += fmt.Sprintf(" WHERE id=$1 AND is_deleted IS FALSE")
+	commandTag, err := s.db.Exec(ctx, query, newValues...)
+	if err != nil {
+		var pgErr *pgconn.PgError
+		if errors.As(err, &pgErr) {
+			switch pgErr.Code {
+			case "22P02":
+				domainErr = domain.NewErrorBadRequest("Invalid format of some values").Wrap(err)
+				return
+			case "22007":
+				domainErr = domain.NewErrorBadRequest(fmt.Sprintf("Invalid datetime: %q", updates["datetime"])).Wrap(err)
+				return
+			case "23502":
+				domainErr = domain.NewErrorBadRequest("Some fields cannot be empty").Wrap(err)
+				return
+			}
+		}
+		domainErr = domain.NewErrorUnexpected().Wrap(err)
+		return
+	}
+	if commandTag.RowsAffected() == 0 {
+		domainErr = domain.NewErrorFileNotFound(file_id).Wrap(err)
+		return
+	}
+	return
+}
+
+// Delete file
+func (s *FileRepository) Delete(ctx context.Context, file_id string) (domainErr *domain.DomainError) {
+	commandTag, err := s.db.Exec(ctx,
+		"UPDATE data.files SET is_deleted=true WHERE id=$1 AND is_deleted IS FALSE",
+		file_id)
+	if err != nil {
+		var pgErr *pgconn.PgError
+		if errors.As(err, &pgErr) {
+			switch pgErr.Code {
+			case "22P02":
+				domainErr = domain.NewErrorBadRequest(fmt.Sprintf("Invalid file id: %q", file_id)).Wrap(err)
+				return
+			}
+		}
+		domainErr = domain.NewErrorUnexpected().Wrap(err)
+		return
+	}
+	if commandTag.RowsAffected() == 0 {
+		domainErr = domain.NewErrorFileNotFound(file_id).Wrap(err)
+		return
+	}
+	return
+}
+
+// Get list of tags of file
+func (s *FileRepository) GetTags(ctx context.Context, user_id int, file_id string) (tags []domain.TagItem, domainErr *domain.DomainError) {
+	rows, err := s.db.Query(ctx, `
+		SELECT
+			t.id,
+			t.name,
+			t.color,
+			c.id,
+			c.name,
+			c.color
+		FROM data.tags t
+		LEFT JOIN data.categories c ON c.id=t.category_id
+		JOIN data.file_tag ft ON ft.tag_id=t.id AND ft.file_id=$2
+		JOIN data.files f ON f.id=$2
+		WHERE NOT f.is_deleted AND (f.creator_id=$1 OR (SELECT view FROM acl.files WHERE file_id=$2 AND user_id=$1) OR (SELECT is_admin FROM system.users WHERE id=$1))
+		`, user_id, file_id)
+	if err != nil {
+		var pgErr *pgconn.PgError
+		if errors.As(err, &pgErr) && (pgErr.Code == "22P02" || pgErr.Code == "22007") {
+			domainErr = domain.NewErrorBadRequest(pgErr.Message).Wrap(err)
+			return
+		}
+		domainErr = domain.NewErrorUnexpected().Wrap(err)
+		return
+	}
+	defer rows.Close()
+	for rows.Next() {
+		var tag domain.TagItem
+		err = rows.Scan(&tag.ID, &tag.Name, &tag.Color, &tag.Category.ID, &tag.Category.Name, &tag.Category.Color)
+		if err != nil {
+			domainErr = domain.NewErrorUnexpected().Wrap(err)
+			return
+		}
+		tags = append(tags, tag)
+	}
+	err = rows.Err()
+	if err != nil {
+		domainErr = domain.NewErrorUnexpected().Wrap(err)
+	}
+	return
+}
@@ -1,21 +1,52 @@
 package postgres

 import (
+	"errors"
 	"fmt"
 	"net/http"
 	"strconv"
 	"strings"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
 )

+// Handle database error
+func handleDBError(errIn error) (statusCode int, err error) {
+	if errIn == nil {
+		statusCode = http.StatusOK
+		return
+	}
+	if errors.Is(errIn, pgx.ErrNoRows) {
+		err = fmt.Errorf("not found")
+		statusCode = http.StatusNotFound
+		return
+	}
+	var pgErr *pgconn.PgError
+	if errors.As(errIn, &pgErr) {
+		switch pgErr.Code {
+		case "22P02", "22007": // Invalid data format
+			err = fmt.Errorf("%s", pgErr.Message)
+			statusCode = http.StatusBadRequest
+			return
+		case "23505": // Unique constraint violation
+			err = fmt.Errorf("already exists")
+			statusCode = http.StatusConflict
+			return
+		}
+	}
+	return http.StatusInternalServerError, errIn
+}
+
 // Convert "filter" URL param to SQL "WHERE" condition
-func filterToSQL(filter string) (sql string, statusCode int, err error) {
+func filterToSQL(filter string) (sql string, err error) {
 	// filterTokens := strings.Split(string(filter), ";")
 	sql = "(true)"
 	return
 }

 // Convert "sort" URL param to SQL "ORDER BY"
-func sortToSQL(sort string) (sql string, statusCode int, err error) {
+func sortToSQL(sort string) (sql string, err error) {
 	if sort == "" {
 		return
 	}
@@ -32,7 +63,6 @@ func sortToSQL(sort string) (sql string, statusCode int, err error) {
 			sortOrder = "DESC"
 		default:
 			err = fmt.Errorf("invalid sorting order mark: %q", sortOrder)
-			statusCode = http.StatusBadRequest
 			return
 		}
 		// validate sorting column
@@ -40,7 +70,6 @@ func sortToSQL(sort string) (sql string, statusCode int, err error) {
 		n, err = strconv.Atoi(sortColumn)
 		if err != nil || n < 0 {
 			err = fmt.Errorf("invalid sorting column: %q", sortColumn)
-			statusCode = http.StatusBadRequest
 			return
 		}
 		// add sorting option to query
@@ -0,0 +1,43 @@
+package rest
+
+import (
+	"net/http"
+
+	"tanabata/internal/domain"
+)
+
+type ErrorResponse struct {
+	Error   string `json:"error"`
+	Code    string `json:"code,omitempty"`
+	Message string `json:"message,omitempty"`
+}
+
+type ErrorMapper struct{}
+
+func (m *ErrorMapper) MapError(err domain.DomainError) (int, ErrorResponse) {
+	switch err.Code {
+	case domain.ErrCodeFileNotFound:
+		return http.StatusNotFound, ErrorResponse{
+			Error:   "Not Found",
+			Code:    string(err.Code),
+			Message: err.Message,
+		}
+	case domain.ErrCodeMIMENotSupported:
+		return http.StatusNotFound, ErrorResponse{
+			Error:   "MIME not supported",
+			Code:    string(err.Code),
+			Message: err.Message,
+		}
+	case domain.ErrCodeBadRequest:
+		return http.StatusNotFound, ErrorResponse{
+			Error:   "Bad Request",
+			Code:    string(err.Code),
+			Message: err.Message,
+		}
+	}
+	return http.StatusInternalServerError, ErrorResponse{
+		Error:   "Internal Server Error",
+		Code:    string(err.Code),
+		Message: err.Message,
+	}
+}
@@ -1,155 +0,0 @@
-package port
-
-import (
-	"context"
-	"time"
-
-	"github.com/google/uuid"
-
-	"tanabata/backend/internal/domain"
-)
-
-// Transactor executes fn inside a single database transaction.
-// All repository calls made within fn receive the transaction via context.
-type Transactor interface {
-	WithTx(ctx context.Context, fn func(ctx context.Context) error) error
-}
-
-// OffsetParams holds common offset-pagination and sort parameters.
-type OffsetParams struct {
-	Sort   string
-	Order  string // "asc" | "desc"
-	Search string
-	Offset int
-	Limit  int
-}
-
-// PoolFileListParams holds parameters for listing files inside a pool.
-type PoolFileListParams struct {
-	Cursor string
-	Limit  int
-	Filter string // filter DSL expression
-}
-
-// FileRepo is the persistence interface for file records.
-type FileRepo interface {
-	// List returns a cursor-based page of files.
-	List(ctx context.Context, params domain.FileListParams) (*domain.FilePage, error)
-	// GetByID returns the file with its tags loaded.
-	GetByID(ctx context.Context, id uuid.UUID) (*domain.File, error)
-	// Create inserts a new file record and returns it.
-	Create(ctx context.Context, f *domain.File) (*domain.File, error)
-	// Update applies partial metadata changes and returns the updated record.
-	Update(ctx context.Context, id uuid.UUID, f *domain.File) (*domain.File, error)
-	// SoftDelete moves a file to trash (sets is_deleted = true).
-	SoftDelete(ctx context.Context, id uuid.UUID) error
-	// Restore moves a file out of trash (sets is_deleted = false).
-	Restore(ctx context.Context, id uuid.UUID) (*domain.File, error)
-	// DeletePermanent removes a file record. Only allowed when is_deleted = true.
-	DeletePermanent(ctx context.Context, id uuid.UUID) error
-
-	// ListTags returns all tags assigned to a file.
-	ListTags(ctx context.Context, fileID uuid.UUID) ([]domain.Tag, error)
-	// SetTags replaces all tags on a file (full replace semantics).
-	SetTags(ctx context.Context, fileID uuid.UUID, tagIDs []uuid.UUID) error
-}
-
-// TagRepo is the persistence interface for tags.
-type TagRepo interface {
-	List(ctx context.Context, params OffsetParams) (*domain.TagOffsetPage, error)
-	// ListByCategory returns tags belonging to a specific category.
-	ListByCategory(ctx context.Context, categoryID uuid.UUID, params OffsetParams) (*domain.TagOffsetPage, error)
-	GetByID(ctx context.Context, id uuid.UUID) (*domain.Tag, error)
-	Create(ctx context.Context, t *domain.Tag) (*domain.Tag, error)
-	Update(ctx context.Context, id uuid.UUID, t *domain.Tag) (*domain.Tag, error)
-	Delete(ctx context.Context, id uuid.UUID) error
-}
-
-// TagRuleRepo is the persistence interface for auto-tag rules.
-type TagRuleRepo interface {
-	// ListByTag returns all rules where WhenTagID == tagID.
-	ListByTag(ctx context.Context, tagID uuid.UUID) ([]domain.TagRule, error)
-	Create(ctx context.Context, r domain.TagRule) (*domain.TagRule, error)
-	// SetActive toggles a rule's is_active flag.
-	SetActive(ctx context.Context, whenTagID, thenTagID uuid.UUID, active bool) error
-	Delete(ctx context.Context, whenTagID, thenTagID uuid.UUID) error
-}
-
-// CategoryRepo is the persistence interface for categories.
-type CategoryRepo interface {
-	List(ctx context.Context, params OffsetParams) (*domain.CategoryOffsetPage, error)
-	GetByID(ctx context.Context, id uuid.UUID) (*domain.Category, error)
-	Create(ctx context.Context, c *domain.Category) (*domain.Category, error)
-	Update(ctx context.Context, id uuid.UUID, c *domain.Category) (*domain.Category, error)
-	Delete(ctx context.Context, id uuid.UUID) error
-}
-
-// PoolRepo is the persistence interface for pools and pool–file membership.
-type PoolRepo interface {
-	List(ctx context.Context, params OffsetParams) (*domain.PoolOffsetPage, error)
-	GetByID(ctx context.Context, id uuid.UUID) (*domain.Pool, error)
-	Create(ctx context.Context, p *domain.Pool) (*domain.Pool, error)
-	Update(ctx context.Context, id uuid.UUID, p *domain.Pool) (*domain.Pool, error)
-	Delete(ctx context.Context, id uuid.UUID) error
-
-	// ListFiles returns pool files ordered by position (cursor-based).
-	ListFiles(ctx context.Context, poolID uuid.UUID, params PoolFileListParams) (*domain.PoolFilePage, error)
-	// AddFiles appends files starting at position; nil position means append at end.
-	AddFiles(ctx context.Context, poolID uuid.UUID, fileIDs []uuid.UUID, position *int) error
-	// RemoveFiles removes files from the pool.
-	RemoveFiles(ctx context.Context, poolID uuid.UUID, fileIDs []uuid.UUID) error
-	// Reorder sets the full ordered sequence of file IDs in the pool.
-	Reorder(ctx context.Context, poolID uuid.UUID, fileIDs []uuid.UUID) error
-}
-
-// UserRepo is the persistence interface for users.
-type UserRepo interface {
-	List(ctx context.Context, params OffsetParams) (*domain.UserPage, error)
-	GetByID(ctx context.Context, id int16) (*domain.User, error)
-	// GetByName is used during login to look up credentials.
-	GetByName(ctx context.Context, name string) (*domain.User, error)
-	Create(ctx context.Context, u *domain.User) (*domain.User, error)
-	Update(ctx context.Context, id int16, u *domain.User) (*domain.User, error)
-	Delete(ctx context.Context, id int16) error
-}
-
-// SessionRepo is the persistence interface for auth sessions.
-type SessionRepo interface {
-	// ListByUser returns all active sessions for a user.
-	ListByUser(ctx context.Context, userID int16) (*domain.SessionList, error)
-	// GetByTokenHash looks up a session by the hashed refresh token.
-	GetByTokenHash(ctx context.Context, hash string) (*domain.Session, error)
-	Create(ctx context.Context, s *domain.Session) (*domain.Session, error)
-	// UpdateLastActivity refreshes the last_activity timestamp.
-	UpdateLastActivity(ctx context.Context, id int, t time.Time) error
-	// Delete terminates a single session.
-	Delete(ctx context.Context, id int) error
-	// DeleteByUserID terminates all sessions for a user (logout everywhere).
-	DeleteByUserID(ctx context.Context, userID int16) error
-}
-
-// ACLRepo is the persistence interface for per-object permissions.
-type ACLRepo interface {
-	// List returns all permission entries for a given object.
-	List(ctx context.Context, objectTypeID int16, objectID uuid.UUID) ([]domain.Permission, error)
-	// Get returns the permission entry for a specific user and object; returns
-	// ErrNotFound if no entry exists.
-	Get(ctx context.Context, userID int16, objectTypeID int16, objectID uuid.UUID) (*domain.Permission, error)
-	// Set replaces all permissions for an object (full replace semantics).
-	Set(ctx context.Context, objectTypeID int16, objectID uuid.UUID, perms []domain.Permission) error
-}
-
-// AuditRepo is the persistence interface for the audit log.
-type AuditRepo interface {
-	Log(ctx context.Context, entry domain.AuditEntry) error
-	List(ctx context.Context, filter domain.AuditFilter) (*domain.AuditPage, error)
-}
-
-// MimeRepo is the persistence interface for the MIME type whitelist.
-type MimeRepo interface {
-	// List returns all supported MIME types.
-	List(ctx context.Context) ([]domain.MIMEType, error)
-	// GetByName returns the MIME type record for a given MIME name (e.g. "image/jpeg").
-	// Returns ErrUnsupportedMIME if not in the whitelist.
-	GetByName(ctx context.Context, name string) (*domain.MIMEType, error)
-}
@@ -1,31 +0,0 @@
-package port
-
-import (
-	"context"
-	"io"
-
-	"github.com/google/uuid"
-)
-
-// FileStorage abstracts disk (or object-store) operations for file content,
-// thumbnails, and previews.
-type FileStorage interface {
-	// Save writes the reader's content to storage and returns the number of
-	// bytes written. ext is the file extension without a leading dot (e.g. "jpg").
-	Save(ctx context.Context, id uuid.UUID, ext string, r io.Reader) (int64, error)
-
-	// Read opens the file content for reading. The caller must close the returned
-	// ReadCloser.
-	Read(ctx context.Context, id uuid.UUID, ext string) (io.ReadCloser, error)
-
-	// Delete removes the file content from storage.
-	Delete(ctx context.Context, id uuid.UUID, ext string) error
-
-	// Thumbnail opens the pre-generated thumbnail (JPEG). Returns ErrNotFound
-	// if the thumbnail has not been generated yet.
-	Thumbnail(ctx context.Context, id uuid.UUID) (io.ReadCloser, error)
-
-	// Preview opens the pre-generated preview image (JPEG). Returns ErrNotFound
-	// if the preview has not been generated yet.
-	Preview(ctx context.Context, id uuid.UUID) (io.ReadCloser, error)
-}
@@ -1,282 +0,0 @@
-package service
-
-import (
-	"context"
-	"crypto/sha256"
-	"encoding/hex"
-	"fmt"
-	"time"
-
-	"github.com/golang-jwt/jwt/v5"
-	"golang.org/x/crypto/bcrypt"
-
-	"tanabata/backend/internal/domain"
-	"tanabata/backend/internal/port"
-)
-
-// Claims is the JWT payload for both access and refresh tokens.
-type Claims struct {
-	jwt.RegisteredClaims
-	UserID    int16 `json:"uid"`
-	IsAdmin   bool  `json:"adm"`
-	SessionID int   `json:"sid"`
-}
-
-// TokenPair holds an issued access/refresh token pair with the access TTL.
-type TokenPair struct {
-	AccessToken  string
-	RefreshToken string
-	ExpiresIn    int // access token TTL in seconds
-}
-
-// AuthService handles authentication and session lifecycle.
-type AuthService struct {
-	users    port.UserRepo
-	sessions port.SessionRepo
-	secret   []byte
-	accessTTL  time.Duration
-	refreshTTL time.Duration
-}
-
-// NewAuthService creates an AuthService.
-func NewAuthService(
-	users port.UserRepo,
-	sessions port.SessionRepo,
-	jwtSecret string,
-	accessTTL time.Duration,
-	refreshTTL time.Duration,
-) *AuthService {
-	return &AuthService{
-		users:      users,
-		sessions:   sessions,
-		secret:     []byte(jwtSecret),
-		accessTTL:  accessTTL,
-		refreshTTL: refreshTTL,
-	}
-}
-
-// Login validates credentials, creates a session, and returns a token pair.
-func (s *AuthService) Login(ctx context.Context, name, password, userAgent string) (*TokenPair, error) {
-	user, err := s.users.GetByName(ctx, name)
-	if err != nil {
-		// Return ErrUnauthorized regardless of whether the user exists,
-		// to avoid username enumeration.
-		return nil, domain.ErrUnauthorized
-	}
-
-	if user.IsBlocked {
-		return nil, domain.ErrForbidden
-	}
-
-	if err := bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(password)); err != nil {
-		return nil, domain.ErrUnauthorized
-	}
-
-	var expiresAt *time.Time
-	if s.refreshTTL > 0 {
-		t := time.Now().Add(s.refreshTTL)
-		expiresAt = &t
-	}
-
-	// Issue the refresh token first so we can store its hash.
-	refreshToken, err := s.issueToken(user.ID, user.IsAdmin, 0, s.refreshTTL)
-	if err != nil {
-		return nil, fmt.Errorf("issue refresh token: %w", err)
-	}
-
-	session, err := s.sessions.Create(ctx, &domain.Session{
-		TokenHash: hashToken(refreshToken),
-		UserID:    user.ID,
-		UserAgent: userAgent,
-		ExpiresAt: expiresAt,
-	})
-	if err != nil {
-		return nil, fmt.Errorf("create session: %w", err)
-	}
-
-	accessToken, err := s.issueToken(user.ID, user.IsAdmin, session.ID, s.accessTTL)
-	if err != nil {
-		return nil, fmt.Errorf("issue access token: %w", err)
-	}
-
-	// Re-issue the refresh token with the real session ID now that we have it.
-	refreshToken, err = s.issueToken(user.ID, user.IsAdmin, session.ID, s.refreshTTL)
-	if err != nil {
-		return nil, fmt.Errorf("issue refresh token: %w", err)
-	}
-
-	return &TokenPair{
-		AccessToken:  accessToken,
-		RefreshToken: refreshToken,
-		ExpiresIn:    int(s.accessTTL.Seconds()),
-	}, nil
-}
-
-// Logout deactivates the session identified by sessionID.
-func (s *AuthService) Logout(ctx context.Context, sessionID int) error {
-	if err := s.sessions.Delete(ctx, sessionID); err != nil {
-		return fmt.Errorf("logout: %w", err)
-	}
-	return nil
-}
-
-// Refresh validates a refresh token, issues a new token pair, and deactivates
-// the old session.
-func (s *AuthService) Refresh(ctx context.Context, refreshToken, userAgent string) (*TokenPair, error) {
-	claims, err := s.parseToken(refreshToken)
-	if err != nil {
-		return nil, domain.ErrUnauthorized
-	}
-
-	session, err := s.sessions.GetByTokenHash(ctx, hashToken(refreshToken))
-	if err != nil {
-		return nil, domain.ErrUnauthorized
-	}
-
-	if session.ExpiresAt != nil && time.Now().After(*session.ExpiresAt) {
-		_ = s.sessions.Delete(ctx, session.ID)
-		return nil, domain.ErrUnauthorized
-	}
-
-	// Rotate: deactivate old session.
-	if err := s.sessions.Delete(ctx, session.ID); err != nil {
-		return nil, fmt.Errorf("deactivate old session: %w", err)
-	}
-
-	user, err := s.users.GetByID(ctx, claims.UserID)
-	if err != nil {
-		return nil, domain.ErrUnauthorized
-	}
-
-	if user.IsBlocked {
-		return nil, domain.ErrForbidden
-	}
-
-	var expiresAt *time.Time
-	if s.refreshTTL > 0 {
-		t := time.Now().Add(s.refreshTTL)
-		expiresAt = &t
-	}
-
-	newRefresh, err := s.issueToken(user.ID, user.IsAdmin, 0, s.refreshTTL)
-	if err != nil {
-		return nil, fmt.Errorf("issue refresh token: %w", err)
-	}
-
-	newSession, err := s.sessions.Create(ctx, &domain.Session{
-		TokenHash: hashToken(newRefresh),
-		UserID:    user.ID,
-		UserAgent: userAgent,
-		ExpiresAt: expiresAt,
-	})
-	if err != nil {
-		return nil, fmt.Errorf("create session: %w", err)
-	}
-
-	accessToken, err := s.issueToken(user.ID, user.IsAdmin, newSession.ID, s.accessTTL)
-	if err != nil {
-		return nil, fmt.Errorf("issue access token: %w", err)
-	}
-
-	newRefresh, err = s.issueToken(user.ID, user.IsAdmin, newSession.ID, s.refreshTTL)
-	if err != nil {
-		return nil, fmt.Errorf("issue refresh token: %w", err)
-	}
-
-	return &TokenPair{
-		AccessToken:  accessToken,
-		RefreshToken: newRefresh,
-		ExpiresIn:    int(s.accessTTL.Seconds()),
-	}, nil
-}
-
-// ListSessions returns all active sessions for the given user.
-func (s *AuthService) ListSessions(ctx context.Context, userID int16, currentSessionID int) (*domain.SessionList, error) {
-	list, err := s.sessions.ListByUser(ctx, userID)
-	if err != nil {
-		return nil, fmt.Errorf("list sessions: %w", err)
-	}
-	for i := range list.Items {
-		list.Items[i].IsCurrent = list.Items[i].ID == currentSessionID
-	}
-	return list, nil
-}
-
-// TerminateSession deactivates a specific session, enforcing ownership.
-func (s *AuthService) TerminateSession(ctx context.Context, callerID int16, isAdmin bool, sessionID int) error {
-	if !isAdmin {
-		list, err := s.sessions.ListByUser(ctx, callerID)
-		if err != nil {
-			return fmt.Errorf("terminate session: %w", err)
-		}
-		owned := false
-		for _, sess := range list.Items {
-			if sess.ID == sessionID {
-				owned = true
-				break
-			}
-		}
-		if !owned {
-			return domain.ErrForbidden
-		}
-	}
-
-	if err := s.sessions.Delete(ctx, sessionID); err != nil {
-		return fmt.Errorf("terminate session: %w", err)
-	}
-	return nil
-}
-
-// ParseAccessToken parses and validates an access token, returning its claims.
-func (s *AuthService) ParseAccessToken(tokenStr string) (*Claims, error) {
-	claims, err := s.parseToken(tokenStr)
-	if err != nil {
-		return nil, domain.ErrUnauthorized
-	}
-	return claims, nil
-}
-
-// issueToken signs a JWT with the given parameters.
-func (s *AuthService) issueToken(userID int16, isAdmin bool, sessionID int, ttl time.Duration) (string, error) {
-	now := time.Now()
-	claims := Claims{
-		RegisteredClaims: jwt.RegisteredClaims{
-			IssuedAt:  jwt.NewNumericDate(now),
-			ExpiresAt: jwt.NewNumericDate(now.Add(ttl)),
-		},
-		UserID:    userID,
-		IsAdmin:   isAdmin,
-		SessionID: sessionID,
-	}
-	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
-	signed, err := token.SignedString(s.secret)
-	if err != nil {
-		return "", fmt.Errorf("sign token: %w", err)
-	}
-	return signed, nil
-}
-
-// parseToken verifies the signature and parses claims from a token string.
-func (s *AuthService) parseToken(tokenStr string) (*Claims, error) {
-	token, err := jwt.ParseWithClaims(tokenStr, &Claims{}, func(t *jwt.Token) (any, error) {
-		if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
-			return nil, fmt.Errorf("unexpected signing method: %v", t.Header["alg"])
-		}
-		return s.secret, nil
-	})
-	if err != nil || !token.Valid {
-		return nil, domain.ErrUnauthorized
-	}
-	claims, ok := token.Claims.(*Claims)
-	if !ok {
-		return nil, domain.ErrUnauthorized
-	}
-	return claims, nil
-}
-
-// hashToken returns the SHA-256 hex digest of a token string.
-// The raw token is never stored; only the hash goes to the database.
-func hashToken(token string) string {
-	sum := sha256.Sum256([]byte(token))
-	return hex.EncodeToString(sum[:])
-}
@@ -1,65 +0,0 @@
-- +goose Up
-
-CREATE EXTENSION IF NOT EXISTS pgcrypto;
-CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
-
-CREATE SCHEMA IF NOT EXISTS core;
-CREATE SCHEMA IF NOT EXISTS data;
-CREATE SCHEMA IF NOT EXISTS acl;
-CREATE SCHEMA IF NOT EXISTS activity;
-
-- UUID v7 generator
-- +goose StatementBegin
-CREATE OR REPLACE FUNCTION public.uuid_v7(cts timestamptz DEFAULT clock_timestamp())
-RETURNS uuid LANGUAGE plpgsql AS $$
-DECLARE
-    state text = current_setting('uuidv7.old_tp', true);
-    old_tp text = split_part(state, ':', 1);
-    base int = coalesce(nullif(split_part(state, ':', 4), '')::int, (random()*16777215/2-1)::int);
-    tp text;
-    entropy text;
-    seq text = base;
-    seqn int = split_part(state, ':', 2);
-    ver text = coalesce(split_part(state, ':', 3), to_hex(8+(random()*3)::int));
-BEGIN
-    base = (random()*16777215/2-1)::int;
-    tp = lpad(to_hex(floor(extract(epoch from cts)*1000)::int8), 12, '0') || '7';
-    IF tp IS DISTINCT FROM old_tp THEN
-        old_tp = tp;
-        ver = to_hex(8+(random()*3)::int);
-        base = (random()*16777215/2-1)::int;
-        seqn = base;
-    ELSE
-        seqn = seqn + (random()*1000)::int;
-    END IF;
-    PERFORM set_config('uuidv7.old_tp', old_tp||':'||seqn||':'||ver||':'||base, false);
-    entropy = md5(gen_random_uuid()::text);
-    seq = lpad(to_hex(seqn), 6, '0');
-    RETURN (tp || substring(seq from 1 for 3) || ver || substring(seq from 4 for 3) ||
-            substring(entropy from 1 for 12))::uuid;
-END;
-$$;
-- +goose StatementEnd
-
-- Extract timestamp from UUID v7
-- +goose StatementBegin
-CREATE OR REPLACE FUNCTION public.uuid_extract_timestamp(uuid_val uuid)
-RETURNS timestamptz LANGUAGE sql IMMUTABLE PARALLEL SAFE AS $$
-    SELECT to_timestamp(
-        ('x' || left(replace(uuid_val::text, '-', ''), 12))::bit(48)::bigint / 1000.0
-    );
-$$;
-- +goose StatementEnd
-
-- +goose Down
-
-DROP FUNCTION IF EXISTS public.uuid_extract_timestamp(uuid);
-DROP FUNCTION IF EXISTS public.uuid_v7(timestamptz);
-
-DROP SCHEMA IF EXISTS activity;
-DROP SCHEMA IF EXISTS acl;
-DROP SCHEMA IF EXISTS data;
-DROP SCHEMA IF EXISTS core;
-
-DROP EXTENSION IF EXISTS "uuid-ossp";
-DROP EXTENSION IF EXISTS pgcrypto;
@@ -1,37 +0,0 @@
-- +goose Up
-
-CREATE TABLE core.users (
-    id         smallint    GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
-    name       varchar(32) NOT NULL,
-    password   text        NOT NULL,  -- bcrypt hash via pgcrypto
-    is_admin   boolean     NOT NULL DEFAULT false,
-    can_create boolean     NOT NULL DEFAULT false,
-    is_blocked boolean     NOT NULL DEFAULT false,
-
-    CONSTRAINT uni__users__name UNIQUE (name)
-);
-
-CREATE TABLE core.mime_types (
-    id        smallint     GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
-    name      varchar(127) NOT NULL,
-    extension varchar(16)  NOT NULL,
-
-    CONSTRAINT uni__mime_types__name UNIQUE (name)
-);
-
-CREATE TABLE core.object_types (
-    id   smallint    GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
-    name varchar(32) NOT NULL,
-
-    CONSTRAINT uni__object_types__name UNIQUE (name)
-);
-
-COMMENT ON TABLE core.users       IS 'Application users';
-COMMENT ON TABLE core.mime_types  IS 'Whitelist of supported MIME types';
-COMMENT ON TABLE core.object_types IS 'Reference: entity types for ACL and audit log';
-
-- +goose Down
-
-DROP TABLE IF EXISTS core.object_types;
-DROP TABLE IF EXISTS core.mime_types;
-DROP TABLE IF EXISTS core.users;
@@ -1,118 +0,0 @@
-- +goose Up
-
-CREATE TABLE data.categories (
-    id         uuid         NOT NULL DEFAULT public.uuid_v7() PRIMARY KEY,
-    name       varchar(256) NOT NULL,
-    notes      text,
-    color      char(6),
-    metadata   jsonb,
-    creator_id smallint     NOT NULL REFERENCES core.users(id)
-                            ON UPDATE CASCADE ON DELETE RESTRICT,
-    is_public  boolean      NOT NULL DEFAULT false,
-
-    CONSTRAINT uni__categories__name UNIQUE (name),
-    CONSTRAINT chk__categories__color_hex
-        CHECK (color IS NULL OR color ~* '^[A-Fa-f0-9]{6}$')
-);
-
-CREATE TABLE data.tags (
-    id          uuid         NOT NULL DEFAULT public.uuid_v7() PRIMARY KEY,
-    name        varchar(256) NOT NULL,
-    notes       text,
-    color       char(6),
-    category_id uuid         REFERENCES data.categories(id)
-                             ON UPDATE CASCADE ON DELETE SET NULL,
-    metadata    jsonb,
-    creator_id  smallint     NOT NULL REFERENCES core.users(id)
-                             ON UPDATE CASCADE ON DELETE RESTRICT,
-    is_public   boolean      NOT NULL DEFAULT false,
-
-    CONSTRAINT uni__tags__name UNIQUE (name),
-    CONSTRAINT chk__tags__color_hex
-        CHECK (color IS NULL OR color ~* '^[A-Fa-f0-9]{6}$')
-);
-
-CREATE TABLE data.tag_rules (
-    when_tag_id uuid    NOT NULL REFERENCES data.tags(id)
-                        ON UPDATE CASCADE ON DELETE CASCADE,
-    then_tag_id uuid    NOT NULL REFERENCES data.tags(id)
-                        ON UPDATE CASCADE ON DELETE CASCADE,
-    is_active   boolean NOT NULL DEFAULT true,
-
-    PRIMARY KEY (when_tag_id, then_tag_id)
-);
-
-CREATE TABLE data.files (
-    id               uuid         NOT NULL DEFAULT public.uuid_v7() PRIMARY KEY,
-    original_name    varchar(256),          -- original filename at upload time
-    mime_id          smallint     NOT NULL REFERENCES core.mime_types(id)
-                                  ON UPDATE CASCADE ON DELETE RESTRICT,
-    content_datetime timestamptz  NOT NULL DEFAULT clock_timestamp(),  -- content datetime (e.g. photo taken)
-    notes            text,
-    metadata         jsonb,                 -- user-editable key-value data
-    exif             jsonb        NOT NULL DEFAULT '{}'::jsonb,  -- EXIF data extracted at upload (immutable)
-    phash            bigint,                -- perceptual hash for duplicate detection (future)
-    creator_id       smallint     NOT NULL REFERENCES core.users(id)
-                                  ON UPDATE CASCADE ON DELETE RESTRICT,
-    is_public        boolean      NOT NULL DEFAULT false,
-    is_deleted       boolean      NOT NULL DEFAULT false  -- soft delete (trash)
-);
-
-CREATE TABLE data.file_tag (
-    file_id uuid NOT NULL REFERENCES data.files(id)
-                 ON UPDATE CASCADE ON DELETE CASCADE,
-    tag_id  uuid NOT NULL REFERENCES data.tags(id)
-                 ON UPDATE CASCADE ON DELETE CASCADE,
-
-    PRIMARY KEY (file_id, tag_id)
-);
-
-CREATE TABLE data.pools (
-    id         uuid         NOT NULL DEFAULT public.uuid_v7() PRIMARY KEY,
-    name       varchar(256) NOT NULL,
-    notes      text,
-    metadata   jsonb,
-    creator_id smallint     NOT NULL REFERENCES core.users(id)
-                            ON UPDATE CASCADE ON DELETE RESTRICT,
-    is_public  boolean      NOT NULL DEFAULT false,
-
-    CONSTRAINT uni__pools__name UNIQUE (name)
-);
-
-- `position` uses integer with gaps (e.g. 1000, 2000, 3000) to allow
-- insertions without renumbering. Compact when gaps get too small.
-CREATE TABLE data.file_pool (
-    file_id  uuid    NOT NULL REFERENCES data.files(id)
-                     ON UPDATE CASCADE ON DELETE CASCADE,
-    pool_id  uuid    NOT NULL REFERENCES data.pools(id)
-                     ON UPDATE CASCADE ON DELETE CASCADE,
-    position integer NOT NULL DEFAULT 0,
-
-    PRIMARY KEY (file_id, pool_id)
-);
-
-COMMENT ON TABLE  data.categories IS 'Logical grouping of tags';
-COMMENT ON TABLE  data.tags       IS 'File labels/tags';
-COMMENT ON TABLE  data.tag_rules  IS 'Auto-tagging rules: when when_tag is assigned, then_tag follows';
-COMMENT ON TABLE  data.files      IS 'Managed files; actual content stored on disk as {id}.{ext}';
-COMMENT ON TABLE  data.file_tag   IS 'Many-to-many: files <-> tags';
-COMMENT ON TABLE  data.pools      IS 'Ordered collections of files';
-COMMENT ON TABLE  data.file_pool  IS 'Many-to-many: files <-> pools, with ordering';
-
-COMMENT ON COLUMN data.files.original_name    IS 'Original filename at upload time';
-COMMENT ON COLUMN data.files.content_datetime IS 'Content datetime (e.g. when photo was taken); falls back to EXIF DateTimeOriginal';
-COMMENT ON COLUMN data.files.metadata         IS 'User-editable key-value metadata';
-COMMENT ON COLUMN data.files.exif             IS 'EXIF data extracted at upload time (immutable, system-managed)';
-COMMENT ON COLUMN data.files.phash            IS 'Perceptual hash for image/video duplicate detection';
-COMMENT ON COLUMN data.files.is_deleted       IS 'Soft-deleted files (trash); true = in recycle bin';
-COMMENT ON COLUMN data.file_pool.position     IS 'Manual ordering within pool; uses gapped integers';
-
-- +goose Down
-
-DROP TABLE IF EXISTS data.file_pool;
-DROP TABLE IF EXISTS data.pools;
-DROP TABLE IF EXISTS data.file_tag;
-DROP TABLE IF EXISTS data.files;
-DROP TABLE IF EXISTS data.tag_rules;
-DROP TABLE IF EXISTS data.tags;
-DROP TABLE IF EXISTS data.categories;
@@ -1,22 +0,0 @@
-- +goose Up
-
-- If is_public=true on the object, it is accessible to everyone (ACL ignored).
-- If is_public=false, only creator and users with can_view=true see it.
-- Admins bypass all ACL checks.
-CREATE TABLE acl.permissions (
-    user_id        smallint NOT NULL REFERENCES core.users(id)
-                            ON UPDATE CASCADE ON DELETE CASCADE,
-    object_type_id smallint NOT NULL REFERENCES core.object_types(id)
-                            ON UPDATE CASCADE ON DELETE RESTRICT,
-    object_id      uuid     NOT NULL,
-    can_view       boolean  NOT NULL DEFAULT true,
-    can_edit       boolean  NOT NULL DEFAULT false,
-
-    PRIMARY KEY (user_id, object_type_id, object_id)
-);
-
-COMMENT ON TABLE acl.permissions IS 'Per-object permissions (used when is_public=false)';
-
-- +goose Down
-
-DROP TABLE IF EXISTS acl.permissions;
@@ -1,82 +0,0 @@
-- +goose Up
-
-CREATE TABLE activity.action_types (
-    id   smallint    GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
-    name varchar(64) NOT NULL,
-
-    CONSTRAINT uni__action_types__name UNIQUE (name)
-);
-
-CREATE TABLE activity.sessions (
-    id            integer      GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
-    token_hash    text         NOT NULL,  -- hashed session token
-    user_id       smallint     NOT NULL REFERENCES core.users(id)
-                               ON UPDATE CASCADE ON DELETE CASCADE,
-    user_agent    varchar(256) NOT NULL,
-    started_at    timestamptz  NOT NULL DEFAULT statement_timestamp(),
-    expires_at    timestamptz,
-    last_activity timestamptz  NOT NULL DEFAULT statement_timestamp(),
-    is_active     boolean      NOT NULL DEFAULT true,
-
-    CONSTRAINT uni__sessions__token_hash UNIQUE (token_hash)
-);
-
-CREATE TABLE activity.file_views (
-    file_id    uuid        NOT NULL REFERENCES data.files(id)
-                           ON UPDATE CASCADE ON DELETE CASCADE,
-    user_id    smallint    NOT NULL REFERENCES core.users(id)
-                           ON UPDATE CASCADE ON DELETE CASCADE,
-    viewed_at  timestamptz NOT NULL DEFAULT statement_timestamp(),
-
-    PRIMARY KEY (file_id, viewed_at, user_id)
-);
-
-CREATE TABLE activity.pool_views (
-    pool_id    uuid        NOT NULL REFERENCES data.pools(id)
-                           ON UPDATE CASCADE ON DELETE CASCADE,
-    user_id    smallint    NOT NULL REFERENCES core.users(id)
-                           ON UPDATE CASCADE ON DELETE CASCADE,
-    viewed_at  timestamptz NOT NULL DEFAULT statement_timestamp(),
-
-    PRIMARY KEY (pool_id, viewed_at, user_id)
-);
-
-CREATE TABLE activity.tag_uses (
-    tag_id      uuid        NOT NULL REFERENCES data.tags(id)
-                            ON UPDATE CASCADE ON DELETE CASCADE,
-    user_id     smallint    NOT NULL REFERENCES core.users(id)
-                            ON UPDATE CASCADE ON DELETE CASCADE,
-    used_at     timestamptz NOT NULL DEFAULT statement_timestamp(),
-    is_included boolean     NOT NULL,  -- true=included in filter, false=excluded
-
-    PRIMARY KEY (tag_id, used_at, user_id)
-);
-
-CREATE TABLE activity.audit_log (
-    id             bigint      GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
-    user_id        smallint    NOT NULL REFERENCES core.users(id)
-                               ON UPDATE CASCADE ON DELETE RESTRICT,
-    action_type_id smallint    NOT NULL REFERENCES activity.action_types(id)
-                               ON UPDATE CASCADE ON DELETE RESTRICT,
-    object_type_id smallint    REFERENCES core.object_types(id)
-                               ON UPDATE CASCADE ON DELETE RESTRICT,
-    object_id      uuid,
-    details        jsonb,               -- action-specific payload
-    performed_at   timestamptz NOT NULL DEFAULT statement_timestamp()
-);
-
-COMMENT ON TABLE activity.action_types IS 'Reference: types of auditable user actions';
-COMMENT ON TABLE activity.sessions     IS 'Active user sessions';
-COMMENT ON TABLE activity.file_views   IS 'File view history';
-COMMENT ON TABLE activity.pool_views   IS 'Pool view history';
-COMMENT ON TABLE activity.tag_uses     IS 'Tag usage in filters';
-COMMENT ON TABLE activity.audit_log    IS 'Unified audit trail for all user actions';
-
-- +goose Down
-
-DROP TABLE IF EXISTS activity.audit_log;
-DROP TABLE IF EXISTS activity.tag_uses;
-DROP TABLE IF EXISTS activity.pool_views;
-DROP TABLE IF EXISTS activity.file_views;
-DROP TABLE IF EXISTS activity.sessions;
-DROP TABLE IF EXISTS activity.action_types;
@@ -1,87 +0,0 @@
-- +goose Up
-
-- core
-CREATE INDEX idx__users__name ON core.users USING hash (name);
-
-- data.categories
-CREATE INDEX idx__categories__creator_id ON data.categories USING hash (creator_id);
-
-- data.tags
-CREATE INDEX idx__tags__category_id ON data.tags USING hash (category_id);
-CREATE INDEX idx__tags__creator_id  ON data.tags USING hash (creator_id);
-
-- data.tag_rules
-CREATE INDEX idx__tag_rules__when ON data.tag_rules USING hash (when_tag_id);
-CREATE INDEX idx__tag_rules__then ON data.tag_rules USING hash (then_tag_id);
-
-- data.files
-CREATE INDEX idx__files__mime_id           ON data.files USING hash (mime_id);
-CREATE INDEX idx__files__creator_id        ON data.files USING hash (creator_id);
-CREATE INDEX idx__files__content_datetime  ON data.files USING btree (content_datetime DESC NULLS LAST);
-CREATE INDEX idx__files__is_deleted        ON data.files USING btree (is_deleted) WHERE is_deleted = true;
-CREATE INDEX idx__files__phash             ON data.files USING btree (phash) WHERE phash IS NOT NULL;
-
-- data.file_tag
-CREATE INDEX idx__file_tag__tag_id  ON data.file_tag USING hash (tag_id);
-CREATE INDEX idx__file_tag__file_id ON data.file_tag USING hash (file_id);
-
-- data.pools
-CREATE INDEX idx__pools__creator_id ON data.pools USING hash (creator_id);
-
-- data.file_pool
-CREATE INDEX idx__file_pool__pool_id ON data.file_pool USING hash (pool_id);
-CREATE INDEX idx__file_pool__file_id ON data.file_pool USING hash (file_id);
-
-- acl.permissions
-CREATE INDEX idx__acl__object ON acl.permissions USING btree (object_type_id, object_id);
-CREATE INDEX idx__acl__user   ON acl.permissions USING hash (user_id);
-
-- activity.sessions
-CREATE INDEX idx__sessions__user_id    ON activity.sessions USING hash (user_id);
-CREATE INDEX idx__sessions__token_hash ON activity.sessions USING hash (token_hash);
-
-- activity.file_views
-CREATE INDEX idx__file_views__user_id ON activity.file_views USING hash (user_id);
-
-- activity.pool_views
-CREATE INDEX idx__pool_views__user_id ON activity.pool_views USING hash (user_id);
-
-- activity.tag_uses
-CREATE INDEX idx__tag_uses__user_id ON activity.tag_uses USING hash (user_id);
-
-- activity.audit_log
-CREATE INDEX idx__audit_log__user_id        ON activity.audit_log USING hash (user_id);
-CREATE INDEX idx__audit_log__action_type_id ON activity.audit_log USING hash (action_type_id);
-CREATE INDEX idx__audit_log__object         ON activity.audit_log USING btree (object_type_id, object_id)
-    WHERE object_id IS NOT NULL;
-CREATE INDEX idx__audit_log__performed_at   ON activity.audit_log USING btree (performed_at DESC);
-
-- +goose Down
-
-DROP INDEX IF EXISTS activity.idx__audit_log__performed_at;
-DROP INDEX IF EXISTS activity.idx__audit_log__object;
-DROP INDEX IF EXISTS activity.idx__audit_log__action_type_id;
-DROP INDEX IF EXISTS activity.idx__audit_log__user_id;
-DROP INDEX IF EXISTS activity.idx__tag_uses__user_id;
-DROP INDEX IF EXISTS activity.idx__pool_views__user_id;
-DROP INDEX IF EXISTS activity.idx__file_views__user_id;
-DROP INDEX IF EXISTS activity.idx__sessions__token_hash;
-DROP INDEX IF EXISTS activity.idx__sessions__user_id;
-DROP INDEX IF EXISTS acl.idx__acl__user;
-DROP INDEX IF EXISTS acl.idx__acl__object;
-DROP INDEX IF EXISTS data.idx__file_pool__file_id;
-DROP INDEX IF EXISTS data.idx__file_pool__pool_id;
-DROP INDEX IF EXISTS data.idx__pools__creator_id;
-DROP INDEX IF EXISTS data.idx__file_tag__file_id;
-DROP INDEX IF EXISTS data.idx__file_tag__tag_id;
-DROP INDEX IF EXISTS data.idx__files__phash;
-DROP INDEX IF EXISTS data.idx__files__is_deleted;
-DROP INDEX IF EXISTS data.idx__files__content_datetime;
-DROP INDEX IF EXISTS data.idx__files__creator_id;
-DROP INDEX IF EXISTS data.idx__files__mime_id;
-DROP INDEX IF EXISTS data.idx__tag_rules__then;
-DROP INDEX IF EXISTS data.idx__tag_rules__when;
-DROP INDEX IF EXISTS data.idx__tags__creator_id;
-DROP INDEX IF EXISTS data.idx__tags__category_id;
-DROP INDEX IF EXISTS data.idx__categories__creator_id;
-DROP INDEX IF EXISTS core.idx__users__name;
@@ -1,36 +0,0 @@
-- +goose Up
-
-INSERT INTO core.object_types (name) VALUES
-    ('file'), ('tag'), ('category'), ('pool');
-
-INSERT INTO activity.action_types (name) VALUES
-    -- Auth
-    ('user_login'), ('user_logout'),
-    -- Files
-    ('file_create'), ('file_edit'), ('file_delete'), ('file_restore'),
-    ('file_permanent_delete'), ('file_replace'),
-    -- Tags
-    ('tag_create'), ('tag_edit'), ('tag_delete'),
-    -- Categories
-    ('category_create'), ('category_edit'), ('category_delete'),
-    -- Pools
-    ('pool_create'), ('pool_edit'), ('pool_delete'),
-    -- Relations
-    ('file_tag_add'), ('file_tag_remove'),
-    ('file_pool_add'), ('file_pool_remove'),
-    -- ACL
-    ('acl_change'),
-    -- Admin
-    ('user_create'), ('user_delete'), ('user_block'), ('user_unblock'),
-    ('user_role_change'),
-    -- Sessions
-    ('session_terminate');
-
-INSERT INTO core.users (name, password, is_admin, can_create) VALUES
-    ('admin', '$2a$10$zk.VTFjRRxbkTE7cKfc7KOWeZfByk1VEkbkgZMJggI1fFf.yDEHZy', true, true);
-
-- +goose Down
-
-DELETE FROM core.users WHERE name = 'admin';
-DELETE FROM activity.action_types;
-DELETE FROM core.object_types;
@@ -1,8 +0,0 @@
-package migrations
-
-import "embed"
-
-// FS holds all goose migration SQL files, embedded at build time.
-//
-//go:embed *.sql
-var FS embed.FS
@@ -0,0 +1,592 @@
+--
+-- PostgreSQL database dump
+--
+
+-- Dumped from database version 14.18 (Ubuntu 14.18-0ubuntu0.22.04.1)
+-- Dumped by pg_dump version 17.4
+
+SET statement_timeout = 0;
+SET lock_timeout = 0;
+SET idle_in_transaction_session_timeout = 0;
+SET transaction_timeout = 0;
+SET client_encoding = 'UTF8';
+SET standard_conforming_strings = on;
+SELECT pg_catalog.set_config('search_path', '', false);
+SET check_function_bodies = false;
+SET xmloption = content;
+SET client_min_messages = warning;
+SET row_security = off;
+
+--
+-- Name: acl; Type: SCHEMA; Schema: -; Owner: -
+--
+
+CREATE SCHEMA acl;
+
+
+--
+-- Name: activity; Type: SCHEMA; Schema: -; Owner: -
+--
+
+CREATE SCHEMA activity;
+
+
+--
+-- Name: data; Type: SCHEMA; Schema: -; Owner: -
+--
+
+CREATE SCHEMA data;
+
+
+--
+-- Name: public; Type: SCHEMA; Schema: -; Owner: -
+--
+
+-- *not* creating schema, since initdb creates it
+
+
+--
+-- Name: system; Type: SCHEMA; Schema: -; Owner: -
+--
+
+CREATE SCHEMA system;
+
+
+--
+-- Name: pgcrypto; Type: EXTENSION; Schema: -; Owner: -
+--
+
+CREATE EXTENSION IF NOT EXISTS pgcrypto WITH SCHEMA public;
+
+
+--
+-- Name: EXTENSION pgcrypto; Type: COMMENT; Schema: -; Owner: -
+--
+
+COMMENT ON EXTENSION pgcrypto IS 'cryptographic functions';
+
+
+--
+-- Name: uuid-ossp; Type: EXTENSION; Schema: -; Owner: -
+--
+
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp" WITH SCHEMA public;
+
+
+--
+-- Name: EXTENSION "uuid-ossp"; Type: COMMENT; Schema: -; Owner: -
+--
+
+COMMENT ON EXTENSION "uuid-ossp" IS 'generate universally unique identifiers (UUIDs)';
+
+
+--
+-- Name: add_file_to_tag_recursive(uuid, uuid); Type: FUNCTION; Schema: data; Owner: -
+--
+
+CREATE FUNCTION data.add_file_to_tag_recursive(f_id uuid, t_id uuid) RETURNS SETOF uuid
+    LANGUAGE plpgsql
+    AS $$
+DECLARE
+	tmp uuid;
+	tt_id uuid;
+	ttt_id uuid;
+BEGIN
+	INSERT INTO data.file_tag VALUES (f_id, t_id) ON CONFLICT DO NOTHING RETURNING tag_id INTO tmp;
+	IF tmp IS NULL THEN
+		RETURN;
+	END IF;
+	RETURN NEXT t_id;
+	FOR tt_id IN
+		SELECT a.add_tag_id FROM data.autotags a WHERE a.trigger_tag_id=t_id AND a.is_active
+	LOOP
+		FOR ttt_id IN SELECT data.add_file_to_tag_recursive(f_id, tt_id)
+		LOOP
+			RETURN NEXT ttt_id;
+		END LOOP;
+	END LOOP;
+END;
+$$;
+
+
+--
+-- Name: uuid_extract_timestamp(uuid); Type: FUNCTION; Schema: public; Owner: -
+--
+
+CREATE FUNCTION public.uuid_extract_timestamp(uuid_val uuid) RETURNS timestamp with time zone
+    LANGUAGE sql IMMUTABLE
+    AS $$
+    SELECT to_timestamp(
+        ('x' || LEFT(REPLACE(uuid_val::TEXT, '-', ''), 12))::BIT(48)::BIGINT
+        / 1000.0
+    );
+$$;
+
+
+--
+-- Name: uuid_v7(timestamp with time zone); Type: FUNCTION; Schema: public; Owner: -
+--
+
+CREATE FUNCTION public.uuid_v7(cts timestamp with time zone DEFAULT clock_timestamp()) RETURNS uuid
+    LANGUAGE plpgsql
+    AS $$
+DECLARE
+  state text = current_setting('uuidv7.old_tp',true);
+  old_tp text = split_part(state, ':',1);
+  base int = coalesce(nullif(split_part(state,':',4),'')::int,(random()*16777215/2-1)::int);
+  tp text;
+  entropy text;
+  seq text=base;
+  seqn int=split_part(state,':',2);
+  ver text = coalesce(split_part(state,':',3),to_hex(8+(random()*3)::int));
+BEGIN
+  base = (random()*16777215/2-1)::int;
+  tp = lpad(to_hex(floor(extract(epoch from cts)*1000)::int8),12,'0')||'7';
+  if tp is distinct from old_tp then
+    old_tp = tp;
+    ver = to_hex(8+(random()*3)::int);
+    base = (random()*16777215/2-1)::int;
+    seqn = base;
+  else
+    seqn = seqn+(random()*1000)::int;
+  end if;
+  perform set_config('uuidv7.old_tp',old_tp||':'||seqn||':'||ver||':'||base, false);
+  entropy = md5(gen_random_uuid()::text);
+  seq = lpad(to_hex(seqn),6,'0');
+  return (tp || substring(seq from 1 for 3) || ver || substring(seq from 4 for 3) ||
+                substring(entropy from 1 for 12))::uuid;
+END
+$$;
+
+
+SET default_table_access_method = heap;
+
+--
+-- Name: categories; Type: TABLE; Schema: acl; Owner: -
+--
+
+CREATE TABLE acl.categories (
+    user_id smallint NOT NULL,
+    category_id uuid NOT NULL,
+    view boolean NOT NULL,
+    edit boolean NOT NULL
+);
+
+
+--
+-- Name: files; Type: TABLE; Schema: acl; Owner: -
+--
+
+CREATE TABLE acl.files (
+    user_id smallint NOT NULL,
+    file_id uuid NOT NULL,
+    view boolean NOT NULL,
+    edit boolean NOT NULL
+);
+
+
+--
+-- Name: pools; Type: TABLE; Schema: acl; Owner: -
+--
+
+CREATE TABLE acl.pools (
+    user_id smallint NOT NULL,
+    pool_id uuid NOT NULL,
+    view boolean NOT NULL,
+    edit boolean NOT NULL
+);
+
+
+--
+-- Name: tags; Type: TABLE; Schema: acl; Owner: -
+--
+
+CREATE TABLE acl.tags (
+    user_id smallint NOT NULL,
+    tag_id uuid NOT NULL,
+    view boolean NOT NULL,
+    edit boolean NOT NULL
+);
+
+
+--
+-- Name: file_views; Type: TABLE; Schema: activity; Owner: -
+--
+
+CREATE TABLE activity.file_views (
+    file_id uuid NOT NULL,
+    "timestamp" timestamp with time zone NOT NULL,
+    user_id smallint NOT NULL
+);
+
+
+--
+-- Name: pool_views; Type: TABLE; Schema: activity; Owner: -
+--
+
+CREATE TABLE activity.pool_views (
+    pool_id uuid NOT NULL,
+    "timestamp" timestamp with time zone NOT NULL,
+    user_id smallint NOT NULL
+);
+
+
+--
+-- Name: sessions; Type: TABLE; Schema: activity; Owner: -
+--
+
+CREATE TABLE activity.sessions (
+    id integer NOT NULL,
+    token text NOT NULL,
+    user_id smallint NOT NULL,
+    user_agent character varying(256) NOT NULL,
+    started_at timestamp with time zone DEFAULT statement_timestamp() NOT NULL,
+    expires_at timestamp with time zone,
+    last_activity timestamp with time zone DEFAULT statement_timestamp() NOT NULL
+);
+
+
+--
+-- Name: sessions_id_seq; Type: SEQUENCE; Schema: activity; Owner: -
+--
+
+CREATE SEQUENCE activity.sessions_id_seq
+    AS integer
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1;
+
+
+--
+-- Name: sessions_id_seq; Type: SEQUENCE OWNED BY; Schema: activity; Owner: -
+--
+
+ALTER SEQUENCE activity.sessions_id_seq OWNED BY activity.sessions.id;
+
+
+--
+-- Name: tag_uses; Type: TABLE; Schema: activity; Owner: -
+--
+
+CREATE TABLE activity.tag_uses (
+    tag_id uuid NOT NULL,
+    "timestamp" timestamp with time zone NOT NULL,
+    user_id smallint NOT NULL,
+    included boolean NOT NULL
+);
+
+
+--
+-- Name: autotags; Type: TABLE; Schema: data; Owner: -
+--
+
+CREATE TABLE data.autotags (
+    trigger_tag_id uuid NOT NULL,
+    add_tag_id uuid NOT NULL,
+    is_active boolean DEFAULT true NOT NULL
+);
+
+
+--
+-- Name: categories; Type: TABLE; Schema: data; Owner: -
+--
+
+CREATE TABLE data.categories (
+    id uuid DEFAULT public.uuid_v7() NOT NULL,
+    name character varying(256) NOT NULL,
+    notes text DEFAULT ''::text NOT NULL,
+    color character(6),
+    creator_id smallint NOT NULL
+);
+
+
+--
+-- Name: file_pool; Type: TABLE; Schema: data; Owner: -
+--
+
+CREATE TABLE data.file_pool (
+    file_id uuid NOT NULL,
+    pool_id uuid NOT NULL,
+    number smallint NOT NULL
+);
+
+
+--
+-- Name: file_tag; Type: TABLE; Schema: data; Owner: -
+--
+
+CREATE TABLE data.file_tag (
+    file_id uuid NOT NULL,
+    tag_id uuid NOT NULL
+);
+
+
+--
+-- Name: files; Type: TABLE; Schema: data; Owner: -
+--
+
+CREATE TABLE data.files (
+    id uuid DEFAULT public.uuid_v7() NOT NULL,
+    name character varying(256),
+    mime_id smallint NOT NULL,
+    datetime timestamp with time zone DEFAULT clock_timestamp() NOT NULL,
+    notes text,
+    metadata jsonb NOT NULL,
+    creator_id smallint NOT NULL,
+    is_deleted boolean DEFAULT false NOT NULL
+);
+
+
+--
+-- Name: pools; Type: TABLE; Schema: data; Owner: -
+--
+
+CREATE TABLE data.pools (
+    id uuid DEFAULT public.uuid_v7() NOT NULL,
+    name character varying(256) NOT NULL,
+    notes text,
+    creator_id smallint NOT NULL
+);
+
+
+--
+-- Name: tags; Type: TABLE; Schema: data; Owner: -
+--
+
+CREATE TABLE data.tags (
+    id uuid DEFAULT public.uuid_v7() NOT NULL,
+    name character varying(256) NOT NULL,
+    notes text,
+    color character(6),
+    category_id uuid,
+    creator_id smallint NOT NULL
+);
+
+
+--
+-- Name: mime; Type: TABLE; Schema: system; Owner: -
+--
+
+CREATE TABLE system.mime (
+    id smallint NOT NULL,
+    name character varying(127) NOT NULL,
+    extension character varying(16) NOT NULL
+);
+
+
+--
+-- Name: mime_id_seq; Type: SEQUENCE; Schema: system; Owner: -
+--
+
+CREATE SEQUENCE system.mime_id_seq
+    AS smallint
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1;
+
+
+--
+-- Name: mime_id_seq; Type: SEQUENCE OWNED BY; Schema: system; Owner: -
+--
+
+ALTER SEQUENCE system.mime_id_seq OWNED BY system.mime.id;
+
+
+--
+-- Name: users; Type: TABLE; Schema: system; Owner: -
+--
+
+CREATE TABLE system.users (
+    id smallint NOT NULL,
+    name character varying(32) NOT NULL,
+    password text NOT NULL,
+    is_admin boolean DEFAULT false NOT NULL,
+    can_create boolean DEFAULT false NOT NULL
+);
+
+
+--
+-- Name: users_id_seq; Type: SEQUENCE; Schema: system; Owner: -
+--
+
+CREATE SEQUENCE system.users_id_seq
+    AS smallint
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1;
+
+
+--
+-- Name: users_id_seq; Type: SEQUENCE OWNED BY; Schema: system; Owner: -
+--
+
+ALTER SEQUENCE system.users_id_seq OWNED BY system.users.id;
+
+
+--
+-- Name: sessions id; Type: DEFAULT; Schema: activity; Owner: -
+--
+
+ALTER TABLE ONLY activity.sessions ALTER COLUMN id SET DEFAULT nextval('activity.sessions_id_seq'::regclass);
+
+
+--
+-- Name: mime id; Type: DEFAULT; Schema: system; Owner: -
+--
+
+ALTER TABLE ONLY system.mime ALTER COLUMN id SET DEFAULT nextval('system.mime_id_seq'::regclass);
+
+
+--
+-- Name: users id; Type: DEFAULT; Schema: system; Owner: -
+--
+
+ALTER TABLE ONLY system.users ALTER COLUMN id SET DEFAULT nextval('system.users_id_seq'::regclass);
+
+
+--
+-- Name: categories categories_pkey; Type: CONSTRAINT; Schema: acl; Owner: -
+--
+
+ALTER TABLE ONLY acl.categories
+    ADD CONSTRAINT categories_pkey PRIMARY KEY (user_id, category_id);
+
+
+--
+-- Name: files files_pkey; Type: CONSTRAINT; Schema: acl; Owner: -
+--
+
+ALTER TABLE ONLY acl.files
+    ADD CONSTRAINT files_pkey PRIMARY KEY (user_id, file_id);
+
+
+--
+-- Name: pools pools_pkey; Type: CONSTRAINT; Schema: acl; Owner: -
+--
+
+ALTER TABLE ONLY acl.pools
+    ADD CONSTRAINT pools_pkey PRIMARY KEY (user_id, pool_id);
+
+
+--
+-- Name: tags tags_pkey; Type: CONSTRAINT; Schema: acl; Owner: -
+--
+
+ALTER TABLE ONLY acl.tags
+    ADD CONSTRAINT tags_pkey PRIMARY KEY (user_id, tag_id);
+
+
+--
+-- Name: file_views file_views_pkey; Type: CONSTRAINT; Schema: activity; Owner: -
+--
+
+ALTER TABLE ONLY activity.file_views
+    ADD CONSTRAINT file_views_pkey PRIMARY KEY (file_id, "timestamp", user_id);
+
+
+--
+-- Name: pool_views pool_views_pkey; Type: CONSTRAINT; Schema: activity; Owner: -
+--
+
+ALTER TABLE ONLY activity.pool_views
+    ADD CONSTRAINT pool_views_pkey PRIMARY KEY (pool_id, "timestamp", user_id);
+
+
+--
+-- Name: sessions sessions_pkey; Type: CONSTRAINT; Schema: activity; Owner: -
+--
+
+ALTER TABLE ONLY activity.sessions
+    ADD CONSTRAINT sessions_pkey PRIMARY KEY (id);
+
+
+--
+-- Name: tag_uses tag_uses_pkey; Type: CONSTRAINT; Schema: activity; Owner: -
+--
+
+ALTER TABLE ONLY activity.tag_uses
+    ADD CONSTRAINT tag_uses_pkey PRIMARY KEY (tag_id, "timestamp", user_id);
+
+
+--
+-- Name: autotags autotags_pkey; Type: CONSTRAINT; Schema: data; Owner: -
+--
+
+ALTER TABLE ONLY data.autotags
+    ADD CONSTRAINT autotags_pkey PRIMARY KEY (trigger_tag_id, add_tag_id);
+
+
+--
+-- Name: categories categories_pkey; Type: CONSTRAINT; Schema: data; Owner: -
+--
+
+ALTER TABLE ONLY data.categories
+    ADD CONSTRAINT categories_pkey PRIMARY KEY (id);
+
+
+--
+-- Name: file_pool file_pool_pkey; Type: CONSTRAINT; Schema: data; Owner: -
+--
+
+ALTER TABLE ONLY data.file_pool
+    ADD CONSTRAINT file_pool_pkey PRIMARY KEY (file_id, pool_id, number);
+
+
+--
+-- Name: file_tag file_tag_pkey; Type: CONSTRAINT; Schema: data; Owner: -
+--
+
+ALTER TABLE ONLY data.file_tag
+    ADD CONSTRAINT file_tag_pkey PRIMARY KEY (file_id, tag_id);
+
+
+--
+-- Name: files files_pkey; Type: CONSTRAINT; Schema: data; Owner: -
+--
+
+ALTER TABLE ONLY data.files
+    ADD CONSTRAINT files_pkey PRIMARY KEY (id);
+
+
+--
+-- Name: pools pools_pkey; Type: CONSTRAINT; Schema: data; Owner: -
+--
+
+ALTER TABLE ONLY data.pools
+    ADD CONSTRAINT pools_pkey PRIMARY KEY (id);
+
+
+--
+-- Name: tags tags_pkey; Type: CONSTRAINT; Schema: data; Owner: -
+--
+
+ALTER TABLE ONLY data.tags
+    ADD CONSTRAINT tags_pkey PRIMARY KEY (id);
+
+
+--
+-- Name: mime mime_pkey; Type: CONSTRAINT; Schema: system; Owner: -
+--
+
+ALTER TABLE ONLY system.mime
+    ADD CONSTRAINT mime_pkey PRIMARY KEY (id);
+
+
+--
+-- Name: users users_pkey; Type: CONSTRAINT; Schema: system; Owner: -
+--
+
+ALTER TABLE ONLY system.users
+    ADD CONSTRAINT users_pkey PRIMARY KEY (id);
+
+
+--
+-- PostgreSQL database dump complete
+--
+
@@ -1,383 +0,0 @@
-# Tanabata File Manager — Frontend Structure
-
-## Stack
-
- **Framework**: SvelteKit (SPA mode, `ssr: false`)
- **Language**: TypeScript
- **CSS**: Tailwind CSS + CSS custom properties (hybrid)
- **API types**: Auto-generated via openapi-typescript
- **PWA**: Service worker + web manifest
- **Font**: Epilogue (variable weight)
- **Package manager**: npm
-
-## Monorepo Layout
-
-```
-tanabata/
-├── backend/                    ← Go project (go.mod in here)
-│   ├── cmd/
-│   ├── internal/
-│   ├── migrations/
-│   ├── go.mod
-│   └── go.sum
-│
-├── frontend/                   ← SvelteKit project (package.json in here)
-│   └── (see below)
-│
-├── openapi.yaml                ← Shared API contract (root level)
-├── docker-compose.yml
-├── Dockerfile
-├── .env.example
-└── README.md
-```
-
-`openapi.yaml` lives at repository root — both backend and frontend
-reference it. The frontend generates types from it; the backend
-validates its handlers against it.
-
-## Frontend Directory Layout
-
-```
-frontend/
-├── package.json
-├── svelte.config.js
-├── vite.config.ts
-├── tsconfig.json
-├── tailwind.config.ts
-├── postcss.config.js
-│
-├── src/
-│   ├── app.html                    # Shell HTML (PWA meta, font preload)
-│   ├── app.css                     # Tailwind directives + CSS custom properties
-│   ├── hooks.server.ts             # Server hooks (not used in SPA mode)
-│   ├── hooks.client.ts             # Client hooks (global error handling)
-│   │
-│   ├── lib/                        # Shared code ($lib/ alias)
-│   │   │
-│   │   ├── api/                    # API client layer
-│   │   │   ├── client.ts           # Base fetch wrapper: auth headers, token refresh,
-│   │   │   │                       # error parsing, base URL
-│   │   │   ├── files.ts            # listFiles, getFile, uploadFile, deleteFile, etc.
-│   │   │   ├── tags.ts             # listTags, createTag, getTag, updateTag, etc.
-│   │   │   ├── categories.ts       # Category API functions
-│   │   │   ├── pools.ts            # Pool API functions
-│   │   │   ├── auth.ts             # login, logout, refresh, listSessions
-│   │   │   ├── acl.ts              # getPermissions, setPermissions
-│   │   │   ├── users.ts            # getMe, updateMe, admin user CRUD
-│   │   │   ├── audit.ts            # queryAuditLog
-│   │   │   ├── schema.ts           # AUTO-GENERATED from openapi.yaml (do not edit)
-│   │   │   └── types.ts            # Friendly type aliases:
-│   │   │                           #   export type File = components["schemas"]["File"]
-│   │   │                           #   export type Tag = components["schemas"]["Tag"]
-│   │   │
-│   │   ├── components/             # Reusable UI components
-│   │   │   │
-│   │   │   ├── layout/             # App shell
-│   │   │   │   ├── Navbar.svelte       # Bottom navigation bar (mobile-first)
-│   │   │   │   ├── Header.svelte       # Section header with sorting controls
-│   │   │   │   ├── SelectionBar.svelte # Floating bar for multi-select actions
-│   │   │   │   └── Loader.svelte       # Full-screen loading overlay
-│   │   │   │
-│   │   │   ├── file/               # File-related components
-│   │   │   │   ├── FileGrid.svelte     # Thumbnail grid with infinite scroll
-│   │   │   │   ├── FileCard.svelte     # Single thumbnail (160×160, selectable)
-│   │   │   │   ├── FileViewer.svelte   # Full-screen preview with prev/next navigation
-│   │   │   │   ├── FileUpload.svelte   # Upload form + drag-and-drop zone
-│   │   │   │   ├── FileDetail.svelte   # Metadata editor (notes, datetime, tags)
-│   │   │   │   └── FilterBar.svelte    # DSL filter builder UI
-│   │   │   │
-│   │   │   ├── tag/                # Tag-related components
-│   │   │   │   ├── TagBadge.svelte     # Colored pill with tag name
-│   │   │   │   ├── TagPicker.svelte    # Searchable tag selector (add/remove)
-│   │   │   │   ├── TagList.svelte      # Tag grid for section view
-│   │   │   │   └── TagRuleEditor.svelte # Auto-tag rule management
-│   │   │   │
-│   │   │   ├── pool/               # Pool-related components
-│   │   │   │   ├── PoolCard.svelte     # Pool preview card
-│   │   │   │   ├── PoolFileList.svelte # Ordered file list with drag reorder
-│   │   │   │   └── PoolDetail.svelte   # Pool metadata editor
-│   │   │   │
-│   │   │   ├── acl/                # Access control components
-│   │   │   │   └── PermissionEditor.svelte  # User permission grid
-│   │   │   │
-│   │   │   └── common/             # Shared primitives
-│   │   │       ├── Button.svelte
-│   │   │       ├── Modal.svelte
-│   │   │       ├── ConfirmDialog.svelte
-│   │   │       ├── Toast.svelte
-│   │   │       ├── InfiniteScroll.svelte
-│   │   │       ├── Pagination.svelte
-│   │   │       ├── SortDropdown.svelte
-│   │   │       ├── SearchInput.svelte
-│   │   │       ├── ColorPicker.svelte
-│   │   │       ├── Checkbox.svelte     # Three-state: checked, unchecked, partial
-│   │   │       └── EmptyState.svelte
-│   │   │
-│   │   ├── stores/                 # Svelte stores (global state)
-│   │   │   ├── auth.ts             # Current user, JWT tokens, isAuthenticated
-│   │   │   ├── selection.ts        # Selected item IDs, selection mode toggle
-│   │   │   ├── sorting.ts          # Per-section sort key + order (persisted to localStorage)
-│   │   │   ├── theme.ts            # Dark/light mode (persisted, respects prefers-color-scheme)
-│   │   │   └── toast.ts            # Notification queue (success, error, info)
-│   │   │
-│   │   └── utils/                  # Pure helper functions
-│   │       ├── format.ts           # formatDate, formatFileSize, formatDuration
-│   │       ├── dsl.ts              # Filter DSL builder: UI state → query string
-│   │       ├── pwa.ts              # PWA reset, cache clear, update prompt
-│   │       └── keyboard.ts         # Keyboard shortcut helpers (Ctrl+A, Escape, etc.)
-│   │
-│   ├── routes/                     # SvelteKit file-based routing
-│   │   │
-│   │   ├── +layout.svelte          # Root layout: Navbar, theme wrapper, toast container
-│   │   ├── +layout.ts              # Root load: auth guard → redirect to /login if no token
-│   │   │
-│   │   ├── +page.svelte            # / → redirect to /files
-│   │   │
-│   │   ├── login/
-│   │   │   └── +page.svelte        # Login form (decorative Tanabata images)
-│   │   │
-│   │   ├── files/
-│   │   │   ├── +page.svelte        # File grid: filter bar, sort, multi-select, upload
-│   │   │   ├── +page.ts            # Load: initial file list (cursor page)
-│   │   │   ├── [id]/
-│   │   │   │   ├── +page.svelte    # File view: preview, metadata, tags, ACL
-│   │   │   │   └── +page.ts        # Load: file detail + tags
-│   │   │   └── trash/
-│   │   │       ├── +page.svelte    # Trash: restore / permanent delete
-│   │   │       └── +page.ts
-│   │   │
-│   │   ├── tags/
-│   │   │   ├── +page.svelte        # Tag list: search, sort, multi-select
-│   │   │   ├── +page.ts
-│   │   │   ├── new/
-│   │   │   │   └── +page.svelte    # Create tag form
-│   │   │   └── [id]/
-│   │   │       ├── +page.svelte    # Tag detail: edit, category, rules, parent tags
-│   │   │       └── +page.ts
-│   │   │
-│   │   ├── categories/
-│   │   │   ├── +page.svelte        # Category list
-│   │   │   ├── +page.ts
-│   │   │   ├── new/
-│   │   │   │   └── +page.svelte
-│   │   │   └── [id]/
-│   │   │       ├── +page.svelte    # Category detail: edit, view tags
-│   │   │       └── +page.ts
-│   │   │
-│   │   ├── pools/
-│   │   │   ├── +page.svelte        # Pool list
-│   │   │   ├── +page.ts
-│   │   │   ├── new/
-│   │   │   │   └── +page.svelte
-│   │   │   └── [id]/
-│   │   │       ├── +page.svelte    # Pool detail: files (reorderable), filter, edit
-│   │   │       └── +page.ts
-│   │   │
-│   │   ├── settings/
-│   │   │   ├── +page.svelte        # Profile: name, password, active sessions
-│   │   │   └── +page.ts
-│   │   │
-│   │   └── admin/
-│   │       ├── +layout.svelte      # Admin layout: restrict to is_admin
-│   │       ├── users/
-│   │       │   ├── +page.svelte    # User management list
-│   │       │   ├── +page.ts
-│   │       │   └── [id]/
-│   │       │       ├── +page.svelte # User detail: role, block/unblock
-│   │       │       └── +page.ts
-│   │       └── audit/
-│   │           ├── +page.svelte    # Audit log with filters
-│   │           └── +page.ts
-│   │
-│   └── service-worker.ts          # PWA: offline cache for pinned files, app shell caching
-│
-└── static/
-    ├── favicon.png
-    ├── favicon.ico
-    ├── manifest.webmanifest        # PWA manifest (name, icons, theme_color)
-    ├── images/
-    │   ├── tanabata-left.png       # Login page decorations (from current design)
-    │   ├── tanabata-right.png
-    │   └── icons/                  # PWA icons (192×192, 512×512, etc.)
-    └── fonts/
-        └── Epilogue-VariableFont_wght.ttf
-```
-
-## Key Architecture Decisions
-
-### CSS Hybrid: Tailwind + Custom Properties
-
-Theme colors defined as CSS custom properties in `app.css`:
-
-```css
-@tailwind base;
-@tailwind components;
-@tailwind utilities;
-
-:root {
-  --color-bg-primary: #312F45;
-  --color-bg-secondary: #181721;
-  --color-bg-elevated: #111118;
-  --color-accent: #9592B5;
-  --color-accent-hover: #7D7AA4;
-  --color-text-primary: #f0f0f0;
-  --color-text-muted: #9999AD;
-  --color-danger: #DB6060;
-  --color-info: #4DC7ED;
-  --color-warning: #F5E872;
-  --color-tag-default: #444455;
-}
-
-:root[data-theme="light"] {
-  --color-bg-primary: #f5f5f5;
-  --color-bg-secondary: #ffffff;
-  /* ... */
-}
-```
-
-Tailwind references them in `tailwind.config.ts`:
-
-```ts
-export default {
-  theme: {
-    extend: {
-      colors: {
-        bg: {
-          primary: 'var(--color-bg-primary)',
-          secondary: 'var(--color-bg-secondary)',
-          elevated: 'var(--color-bg-elevated)',
-        },
-        accent: {
-          DEFAULT: 'var(--color-accent)',
-          hover: 'var(--color-accent-hover)',
-        },
-        // ...
-      },
-      fontFamily: {
-        sans: ['Epilogue', 'sans-serif'],
-      },
-    },
-  },
-  darkMode: 'class', // controlled via data-theme attribute
-};
-```
-
-Usage in components: `<div class="bg-bg-primary text-text-primary rounded-xl p-4">`.
-Complex cases use scoped `<style>` inside `.svelte` files.
-
-### API Client Pattern
-
-`client.ts` — thin wrapper around fetch:
-
-```ts
-// $lib/api/client.ts
-import { authStore } from '$lib/stores/auth';
-
-const BASE = '/api/v1';
-
-async function request<T>(path: string, init?: RequestInit): Promise<T> {
-  const token = get(authStore).accessToken;
-  const res = await fetch(BASE + path, {
-    ...init,
-    headers: {
-      'Content-Type': 'application/json',
-      ...(token && { Authorization: `Bearer ${token}` }),
-      ...init?.headers,
-    },
-  });
-  if (res.status === 401) {
-    // attempt refresh, retry once
-  }
-  if (!res.ok) {
-    const err = await res.json();
-    throw new ApiError(res.status, err.code, err.message, err.details);
-  }
-  if (res.status === 204) return undefined as T;
-  return res.json();
-}
-
-export const api = {
-  get: <T>(path: string) => request<T>(path),
-  post: <T>(path: string, body?: unknown) =>
-    request<T>(path, { method: 'POST', body: JSON.stringify(body) }),
-  patch: <T>(path: string, body?: unknown) =>
-    request<T>(path, { method: 'PATCH', body: JSON.stringify(body) }),
-  put: <T>(path: string, body?: unknown) =>
-    request<T>(path, { method: 'PUT', body: JSON.stringify(body) }),
-  delete: <T>(path: string) => request<T>(path, { method: 'DELETE' }),
-  upload: <T>(path: string, formData: FormData) =>
-    request<T>(path, { method: 'POST', body: formData, headers: {} }),
-};
-```
-
-Domain-specific modules use it:
-
-```ts
-// $lib/api/files.ts
-import { api } from './client';
-import type { File, FileCursorPage } from './types';
-
-export function listFiles(params: Record<string, string>) {
-  const qs = new URLSearchParams(params).toString();
-  return api.get<FileCursorPage>(`/files?${qs}`);
-}
-
-export function uploadFile(formData: FormData) {
-  return api.upload<File>('/files', formData);
-}
-```
-
-### Type Generation
-
-Script in `package.json`:
-
-```json
-{
-  "scripts": {
-    "generate:types": "openapi-typescript ../openapi.yaml -o src/lib/api/schema.ts",
-    "dev": "npm run generate:types && vite dev",
-    "build": "npm run generate:types && vite build"
-  }
-}
-```
-
-Friendly aliases in `types.ts`:
-
-```ts
-import type { components } from './schema';
-
-export type File = components['schemas']['File'];
-export type Tag = components['schemas']['Tag'];
-export type Category = components['schemas']['Category'];
-export type Pool = components['schemas']['Pool'];
-export type FileCursorPage = components['schemas']['FileCursorPage'];
-export type TagOffsetPage = components['schemas']['TagOffsetPage'];
-export type Error = components['schemas']['Error'];
-// ...
-```
-
-### SPA Mode
-
-`svelte.config.js`:
-
-```js
-import adapter from '@sveltejs/adapter-static';
-
-export default {
-  kit: {
-    adapter: adapter({ fallback: 'index.html' }),
-    // SPA: all routes handled client-side
-  },
-};
-```
-
-The Go backend serves `index.html` for all non-API routes (SPA fallback).
-In development, Vite dev server proxies `/api` to the Go backend.
-
-### PWA
-
-`service-worker.ts` handles:
- App shell caching (HTML, CSS, JS, fonts)
- User-pinned file caching (explicit, via UI button)
- Cache versioning and cleanup on update
- Reset function (clear all caches except pinned files)
@@ -1,320 +0,0 @@
-# Tanabata File Manager — Go Project Structure
-
-## Stack
-
- **Router**: Gin
- **Database**: pgx v5 (pgxpool)
- **Migrations**: goose v3 + go:embed (auto-migrate on startup)
- **Auth**: JWT (golang-jwt/jwt/v5)
- **Config**: environment variables via .env (joho/godotenv)
- **Logging**: slog (stdlib, Go 1.21+)
- **Validation**: go-playground/validator/v10
- **EXIF**: rwcarlsen/goexif or dsoprea/go-exif
- **Image processing**: disintegration/imaging (thumbnails, previews)
- **Architecture**: Clean Architecture (domain → service → repository/handler)
-
-## Monorepo Layout
-
-```
-tanabata/
-├── backend/                            ← Go project
-├── frontend/                           ← SvelteKit project
-├── openapi.yaml                        ← Shared API contract
-├── docker-compose.yml
-├── Dockerfile
-├── .env.example
-└── README.md
-```
-
-## Backend Directory Layout
-
-```
-backend/
-├── cmd/
-│   └── server/
-│       └── main.go                     # Entrypoint: config → DB → migrate → wire → run
-│
-├── internal/
-│   │
-│   ├── domain/                         # Pure business entities & value objects
-│   │   ├── file.go                     # File, FileFilter, FilePage
-│   │   ├── tag.go                      # Tag, TagRule
-│   │   ├── category.go                 # Category
-│   │   ├── pool.go                     # Pool, PoolFile
-│   │   ├── user.go                     # User, Session
-│   │   ├── acl.go                      # Permission, ObjectType
-│   │   ├── audit.go                    # AuditEntry, ActionType
-│   │   └── errors.go                   # Domain error types (ErrNotFound, ErrForbidden, etc.)
-│   │
-│   ├── port/                           # Interfaces (ports) — contracts between layers
-│   │   ├── repository.go              # FileRepo, TagRepo, CategoryRepo, PoolRepo,
-│   │   │                               # UserRepo, SessionRepo, ACLRepo, AuditRepo,
-│   │   │                               # MimeRepo, TagRuleRepo
-│   │   └── storage.go                 # FileStorage interface (disk operations)
-│   │
-│   ├── service/                        # Business logic (use cases)
-│   │   ├── file_service.go             # Upload, update, delete, trash/restore, replace,
-│   │   │                               # import, filter/list, duplicate detection
-│   │   ├── tag_service.go              # CRUD + auto-tag application logic
-│   │   ├── category_service.go         # CRUD (thin, delegates to repo + ACL + audit)
-│   │   ├── pool_service.go             # CRUD + file ordering, add/remove files
-│   │   ├── auth_service.go             # Login, logout, JWT issue/refresh, session management
-│   │   ├── acl_service.go              # Permission checks, grant/revoke
-│   │   ├── audit_service.go            # Log actions, query audit log
-│   │   └── user_service.go             # Profile update, admin CRUD, block/unblock
-│   │
-│   ├── handler/                        # HTTP layer (Gin handlers)
-│   │   ├── router.go                   # Route registration, middleware wiring
-│   │   ├── middleware.go               # Auth middleware (JWT extraction → context)
-│   │   ├── request.go                  # Common request parsing helpers
-│   │   ├── response.go                 # Error/success response builders
-│   │   ├── file_handler.go             # /files endpoints
-│   │   ├── tag_handler.go              # /tags endpoints
-│   │   ├── category_handler.go         # /categories endpoints
-│   │   ├── pool_handler.go             # /pools endpoints
-│   │   ├── auth_handler.go             # /auth endpoints
-│   │   ├── acl_handler.go              # /acl endpoints
-│   │   ├── user_handler.go             # /users endpoints
-│   │   └── audit_handler.go            # /audit endpoints
-│   │
-│   ├── db/                             # Database adapters
-│   │   ├── db.go                       # Common helpers: pagination, repo factory, transactor base
-│   │   └── postgres/                   # PostgreSQL implementation
-│   │       ├── postgres.go             # pgxpool init, tx-from-context helpers
-│   │       ├── file_repo.go            # FileRepo implementation
-│   │       ├── tag_repo.go             # TagRepo + TagRuleRepo implementation
-│   │       ├── category_repo.go        # CategoryRepo implementation
-│   │       ├── pool_repo.go            # PoolRepo implementation
-│   │       ├── user_repo.go            # UserRepo implementation
-│   │       ├── session_repo.go         # SessionRepo implementation
-│   │       ├── acl_repo.go             # ACLRepo implementation
-│   │       ├── audit_repo.go           # AuditRepo implementation
-│   │       ├── mime_repo.go            # MimeRepo implementation
-│   │       └── filter_parser.go        # DSL → SQL WHERE clause builder
-│   │
-│   ├── storage/                        # File storage adapter
-│   │   └── disk.go                     # FileStorage implementation (read/write/delete on disk)
-│   │
-│   └── config/                         # Configuration
-│       └── config.go                   # Struct + loader from env vars
-│
-├── migrations/                         # SQL migration files (goose format)
-│   ├── 001_init_schemas.sql
-│   ├── 002_core_tables.sql
-│   ├── 003_data_tables.sql
-│   ├── 004_acl_tables.sql
-│   ├── 005_activity_tables.sql
-│   ├── 006_indexes.sql
-│   └── 007_seed_data.sql
-│
-├── go.mod
-└── go.sum
-```
-
-## Layer Dependency Rules
-
-```
-handler  →  service  →  port (interfaces)  ←  db/postgres / storage
-                ↓
-              domain (entities, value objects, errors)
-```
-
- **domain/**: zero imports from other internal packages. Only stdlib.
- **port/**: imports only domain/. Defines interfaces.
- **service/**: imports domain/ and port/. Never imports db/ or handler/.
- **handler/**: imports domain/ and service/. Never imports db/.
- **db/postgres/**: imports domain/, port/, and db/ (common helpers). Implements port interfaces.
- **db/**: imports domain/ and port/. Shared utilities for all DB adapters.
- **storage/**: imports domain/ and port/. Implements FileStorage.
-
-No layer may import a layer above it. No circular dependencies.
-
-## Key Design Decisions
-
-### Dependency Injection (Wiring)
-
-Manual wiring in `cmd/server/main.go`. No DI frameworks.
-
-```go
-// Pseudocode
-pool := postgres.NewPool(cfg.DatabaseURL)
-goose.Up(pool, migrations)
-
-// Repos (all from internal/db/postgres/)
-fileRepo   := postgres.NewFileRepo(pool)
-tagRepo    := postgres.NewTagRepo(pool)
-// ...
-
-// Storage
-diskStore  := storage.NewDiskStorage(cfg.FilesPath)
-
-// Services
-aclSvc     := service.NewACLService(aclRepo, objectTypeRepo)
-auditSvc   := service.NewAuditService(auditRepo, actionTypeRepo)
-fileSvc    := service.NewFileService(fileRepo, mimeRepo, tagRepo, diskStore, aclSvc, auditSvc)
-tagSvc     := service.NewTagService(tagRepo, tagRuleRepo, aclSvc, auditSvc)
-// ...
-
-// Handlers
-fileHandler := handler.NewFileHandler(fileSvc, tagSvc)
-// ...
-
-router := handler.NewRouter(cfg, fileHandler, tagHandler, ...)
-router.Run(cfg.ListenAddr)
-```
-
-### Context Propagation
-
-Every service method receives `context.Context` as the first argument.
-The handler extracts user info from JWT (via middleware) and puts it
-into context. Services read the current user from context for ACL checks
-and audit logging.
-
-```go
-// middleware.go
-func (m *AuthMiddleware) Handle(c *gin.Context) {
-    claims := parseJWT(c.GetHeader("Authorization"))
-    ctx := domain.WithUser(c.Request.Context(), claims.UserID, claims.IsAdmin)
-    c.Request = c.Request.WithContext(ctx)
-    c.Next()
-}
-
-// domain/context.go
-type ctxKey int
-const userKey ctxKey = iota
-func WithUser(ctx context.Context, userID int16, isAdmin bool) context.Context { ... }
-func UserFromContext(ctx context.Context) (userID int16, isAdmin bool) { ... }
-```
-
-### Transaction Management
-
-Repository interfaces include a `Transactor`:
-
-```go
-// port/repository.go
-type Transactor interface {
-    WithTx(ctx context.Context, fn func(ctx context.Context) error) error
-}
-```
-
-The postgres implementation wraps `pgxpool.Pool.BeginTx`. Inside `fn`,
-all repo calls use the transaction from context. This allows services
-to compose multiple repo calls in a single transaction:
-
-```go
-// service/file_service.go
-func (s *FileService) Upload(ctx context.Context, input UploadInput) (*domain.File, error) {
-    return s.tx.WithTx(ctx, func(ctx context.Context) error {
-        file, err := s.fileRepo.Create(ctx, ...)  // uses tx
-        if err != nil { return err }
-        for _, tagID := range input.TagIDs {
-            s.tagRepo.AddFileTag(ctx, file.ID, tagID)  // same tx
-        }
-        s.auditRepo.Log(ctx, ...)  // same tx
-        return nil
-    })
-}
-```
-
-### ACL Check Pattern
-
-ACL logic is centralized in `ACLService`. Other services call it before
-any data mutation or retrieval:
-
-```go
-// service/acl_service.go
-func (s *ACLService) CanView(ctx context.Context, objectType string, objectID uuid.UUID) error {
-    userID, isAdmin := domain.UserFromContext(ctx)
-    if isAdmin { return nil }
-    // Check is_public on the object
-    // If not public, check creator_id == userID
-    // If not creator, check acl.permissions
-    // Return domain.ErrForbidden if none match
-}
-```
-
-### Error Mapping
-
-Domain errors → HTTP status codes (handled in handler/response.go):
-
-| Domain Error          | HTTP Status | Error Code        |
-|-----------------------|-------------|-------------------|
-| ErrNotFound           | 404         | not_found         |
-| ErrForbidden          | 403         | forbidden         |
-| ErrUnauthorized       | 401         | unauthorized      |
-| ErrConflict           | 409         | conflict          |
-| ErrValidation         | 400         | validation_error  |
-| ErrUnsupportedMIME    | 415         | unsupported_mime  |
-| (unexpected)          | 500         | internal_error    |
-
-### Filter DSL
-
-The DSL parser lives in `db/postgres/filter_parser.go` because it produces
-SQL WHERE clauses — it is a PostgreSQL-specific adapter concern.
-The service layer passes the raw DSL string to the repository; the
-repository parses it and builds the query.
-
-For a different DBMS, a corresponding parser would live in
-`db/<dbms>/filter_parser.go`.
-
-The interface:
-```go
-// port/repository.go
-type FileRepo interface {
-    List(ctx context.Context, params FileListParams) (*domain.FilePage, error)
-    // ...
-}
-
-// domain/file.go
-type FileListParams struct {
-    Filter    string    // raw DSL string
-    Sort      string
-    Order     string
-    Cursor    string
-    Anchor    *uuid.UUID
-    Direction string    // "forward" or "backward"
-    Limit     int
-    Trash     bool
-    Search    string
-}
-```
-
-### JWT Structure
-
-```go
-type Claims struct {
-    jwt.RegisteredClaims
-    UserID   int16 `json:"uid"`
-    IsAdmin  bool  `json:"adm"`
-    SessionID int  `json:"sid"`
-}
-```
-
-Access token: short-lived (15 min). Refresh token: long-lived (30 days),
-stored as hash in `activity.sessions.token_hash`.
-
-### Configuration (.env)
-
-```env
-# Server
-LISTEN_ADDR=:8080
-JWT_SECRET=<random-32-bytes>
-JWT_ACCESS_TTL=15m
-JWT_REFRESH_TTL=720h
-
-# Database
-DATABASE_URL=postgres://user:pass@host:5432/tanabata?sslmode=disable
-
-# Storage
-FILES_PATH=/data/files
-THUMBS_CACHE_PATH=/data/thumbs
-
-# Thumbnails
-THUMB_WIDTH=160
-THUMB_HEIGHT=160
-PREVIEW_WIDTH=1920
-PREVIEW_HEIGHT=1080
-
-# Import
-IMPORT_PATH=/data/import
-```
@@ -0,0 +1,212 @@
+@startuml Tanabata File Manager entity relationship diagram
+
+' skinparam linetype ortho
+
+
+' ========== SYSTEM ==========
+
+entity "system.users" as usr {
+    * id : smallserial <<generated>>
+    --
+    * name : varchar(32)
+    * password : text
+    * is_admin : boolean
+    * can_create : boolean
+}
+
+entity "system.mime" as mime {
+    * id : smallserial <<generated>>
+    --
+    * name : varchar(127)
+    * extension : varchar(16)
+}
+
+
+' ========== DATA ==========
+
+entity "data.categories" as cty {
+    * id : uuid <<generated>>
+    --
+    * name : varchar(256)
+      notes : text
+      color : char(6)
+    ' * created_at : timestamptz <<generated>>
+    * creator_id : smallint
+    ' * is_private : boolean
+}
+
+cty::creator_id }o--|| usr::id
+
+entity "data.files" as fle {
+    * id : uuid <<generated>>
+    --
+      name : varchar(256)
+    * mime_id : smallint
+    * datetime : timestamptz
+      notes : text
+    * metadata : jsonb
+    ' * created_at : timestamptz <<generated>>
+    * creator_id : smallint
+    ' * is_private : boolean
+    * is_deleted : boolean
+}
+
+fle::mime_id }o--|| mime::id
+fle::creator_id }o--|| usr::id
+
+entity "data.tags" as tag {
+    * id : uuid <<generated>>
+    --
+    * name : varchar(256)
+      notes : text
+      color : char(6)
+      category_id : uuid
+    ' * created_at : timestamptz <<generated>>
+    * creator_id : smallint
+    ' * is_private : boolean
+}
+
+tag::category_id }o--o| cty::id
+tag::creator_id }o--|| usr::id
+
+entity "data.file_tag" as ft {
+    * file_id : uuid
+    * tag_id : uuid
+}
+
+ft::file_id }o--|| fle::id
+ft::tag_id }o--|| tag::id
+
+entity "data.autotags" as atg {
+    * trigger_tag_id : uuid
+    * add_tag_id : uuid
+    --
+    * is_active : boolean
+}
+
+atg::trigger_tag_id }o--|| tag::id
+atg::add_tag_id }o--|| tag::id
+
+entity "data.pools" as pool {
+    * id : uuid <<generated>>
+    --
+    * name : varchar(256)
+      notes : text
+    '   parent_id : uuid
+    ' * created_at : timestamptz
+    * creator_id : smallint
+    ' * is_private : boolean
+}
+
+pool::creator_id }o--|| usr::id
+' pool::parent_id }o--o| pool::id
+
+entity "data.file_pool" as fp {
+    * file_id : uuid
+    * pool_id : uuid
+    * number : smallint
+}
+
+fp::file_id }o--|| fle::id
+fp::pool_id }o--|| pool::id
+
+
+' ========== ACL ==========
+
+entity "acl.files" as acl_f {
+    * user_id : smallint
+    * file_id : uuid
+    --
+    * view : boolean
+    * edit : boolean
+}
+
+acl_f::user_id }o--|| usr::id
+acl_f::file_id }o--|| fle::id
+
+entity "acl.tags" as acl_t {
+    * user_id : smallint
+    * tag_id : uuid
+    --
+    * view : boolean
+    * edit : boolean
+    ' * files_view : boolean
+    ' * files_edit : boolean
+}
+
+acl_t::user_id }o--|| usr::id
+acl_t::tag_id }o--|| tag::id
+
+entity "acl.categories" as acl_c {
+    * user_id : smallint
+    * category_id : uuid
+    --
+    * view : boolean
+    * edit : boolean
+    ' * tags_view : boolean
+    ' * tags_edit : boolean
+}
+
+acl_c::user_id }o--|| usr::id
+acl_c::category_id }o--|| cty::id
+
+entity "acl.pools" as acl_p {
+    * user_id : smallint
+    * pool_id : uuid
+    --
+    * view : boolean
+    * edit : boolean
+    ' * files_view : boolean
+    ' * files_edit : boolean
+}
+
+acl_p::user_id }o--|| usr::id
+acl_p::pool_id }o--|| pool::id
+
+
+' ========== ACTIVITY ==========
+
+entity "activity.sessions" as ssn {
+    * id : serial <<generated>>
+    --
+    * token : text
+    * user_id : smallint
+    * user_agent : varchar(512)
+    * started_at : timestamptz
+      expires_at : timestamptz
+    * last_activity : timestamptz
+}
+
+ssn::user_id }o--|| usr::id
+
+entity "activity.file_views" as fv {
+    * file_id : uuid
+    * timestamp : timestamptz
+    * user_id : smallint
+}
+
+fv::file_id }o--|| fle::id
+fv::user_id }o--|| usr::id
+
+entity "activity.tag_uses" as tu {
+    * tag_id : uuid
+    * timestamp : timestamptz
+    * user_id : smallint
+    --
+    * included : boolean
+}
+
+tu::tag_id }o--|| tag::id
+tu::user_id }o--|| usr::id
+
+entity "activity.pool_views" as pv {
+    * pool_id : uuid
+    * timestamp : timestamptz
+    * user_id : smallint
+}
+
+pv::pool_id }o--|| pool::id
+pv::user_id }o--|| usr::id
+
+
+@enduml
@@ -1,374 +0,0 @@
-from configparser import ConfigParser
-from psycopg2.pool import ThreadedConnectionPool
-from psycopg2.extras import RealDictCursor
-from contextlib import contextmanager
-from os import access, W_OK, makedirs, chmod, system
-from os.path import isfile, join, basename
-from shutil import move
-from magic import Magic
-from preview_generator.manager import PreviewManager
-
-conf = None
-
-mage = None
-previewer = None
-
-db_pool = None
-
-DEFAULT_SORTING = {
-	"files": {
-		"key": "created",
-		"asc": False
-	},
-	"tags": {
-		"key": "created",
-		"asc": False
-	},
-	"categories": {
-		"key": "created",
-		"asc": False
-	},
-	"pools": {
-		"key": "created",
-		"asc": False
-	},
-}
-
-
-def Initialize(conf_path="/etc/tfm/tfm.conf"):
-	global mage, previewer
-	load_config(conf_path)
-	mage = Magic(mime=True)
-	previewer = PreviewManager(conf["Paths"]["Thumbs"])
-	db_connect(conf["DB.limits"]["MinimumConnections"], conf["DB.limits"]["MaximumConnections"], **conf["DB.params"])
-
-
-def load_config(path):
-	global conf
-	conf = ConfigParser()
-	conf.read(path)
-
-
-def db_connect(minconn, maxconn, **kwargs):
-	global db_pool
-	db_pool = ThreadedConnectionPool(minconn, maxconn, **kwargs)
-
-
-@contextmanager
-def _db_cursor():
-	global db_pool
-	try:
-		conn = db_pool.getconn()
-	except:
-		raise RuntimeError("Database not connected")
-	try:
-		with conn.cursor(cursor_factory=RealDictCursor) as cur:
-			yield cur
-			conn.commit()
-	except:
-		conn.rollback()
-		raise
-	finally:
-		db_pool.putconn(conn)
-
-
-def _validate_column_name(cur, table, column):
-	cur.execute("SELECT get_column_names(%s) AS name", (table,))
-	if all([column!=col["name"] for col in cur.fetchall()]):
-		raise RuntimeError("Invalid column name")
-
-
-def authorize(username, password, useragent):
-	with _db_cursor() as cur:
-		cur.execute("SELECT tfm_session_request(tfm_user_auth(%s, %s), %s) AS sid", (username, password, useragent))
-		sid = cur.fetchone()["sid"]
-	return TSession(sid)
-
-
-class TSession:
-	sid = None
-
-	def __init__(self, sid):
-		with _db_cursor() as cur:
-			cur.execute("SELECT tfm_session_validate(%s) IS NOT NULL AS valid", (sid,))
-			if not cur.fetchone()["valid"]:
-				raise RuntimeError("Invalid sid")
-			self.sid = sid
-
-	def terminate(self):
-		with _db_cursor() as cur:
-			cur.execute("CALL tfm_session_terminate(%s)", (self.sid,))
-		del self
-
-	@property
-	def username(self):
-		with _db_cursor() as cur:
-			cur.execute("SELECT tfm_session_username(%s) AS name", (self.sid,))
-			return cur.fetchone()["name"]
-	
-	@property
-	def is_admin(self):
-		with _db_cursor() as cur:
-			cur.execute("SELECT * FROM tfm_user_get_info(%s)", (self.sid,))
-			return cur.fetchone()["can_edit"]
-
-	def get_files(self, order_key=DEFAULT_SORTING["files"]["key"], order_asc=DEFAULT_SORTING["files"]["asc"], offset=0, limit=None):
-		with _db_cursor() as cur:
-			_validate_column_name(cur, "v_files", order_key)
-			cur.execute("SELECT * FROM tfm_get_files(%%s) ORDER BY %s %s OFFSET %s LIMIT %s" % (
-				order_key,
-				"ASC" if order_asc else "DESC",
-				int(offset),
-				int(limit) if limit is not None else "ALL"
-			), (self.sid,))
-			return list(map(dict, cur.fetchall()))
-
-	def get_files_by_filter(self, philter=None, order_key=DEFAULT_SORTING["files"]["key"], order_asc=DEFAULT_SORTING["files"]["asc"], offset=0, limit=None):
-		with _db_cursor() as cur:
-			_validate_column_name(cur, "v_files", order_key)
-			cur.execute("SELECT * FROM tfm_get_files_by_filter(%%s, %%s) ORDER BY %s %s OFFSET %s LIMIT %s" % (
-				order_key,
-				"ASC" if order_asc else "DESC",
-				int(offset),
-				int(limit) if limit is not None else "ALL"
-			), (self.sid, philter))
-			return list(map(dict, cur.fetchall()))
-
-	def get_tags(self, order_key=DEFAULT_SORTING["tags"]["key"], order_asc=DEFAULT_SORTING["tags"]["asc"], offset=0, limit=None):
-		with _db_cursor() as cur:
-			_validate_column_name(cur, "v_tags", order_key)
-			cur.execute("SELECT * FROM tfm_get_tags(%%s) ORDER BY %s %s, name ASC OFFSET %s LIMIT %s" % (
-				order_key,
-				"ASC" if order_asc else "DESC",
-				int(offset),
-				int(limit) if limit is not None else "ALL"
-			), (self.sid,))
-			return list(map(dict, cur.fetchall()))
-
-	def get_categories(self, order_key=DEFAULT_SORTING["categories"]["key"], order_asc=DEFAULT_SORTING["categories"]["asc"], offset=0, limit=None):
-		with _db_cursor() as cur:
-			_validate_column_name(cur, "v_categories", order_key)
-			cur.execute("SELECT * FROM tfm_get_categories(%%s) ORDER BY %s %s OFFSET %s LIMIT %s" % (
-				order_key,
-				"ASC" if order_asc else "DESC",
-				int(offset),
-				int(limit) if limit is not None else "ALL"
-			), (self.sid,))
-			return list(map(dict, cur.fetchall()))
-
-	def get_pools(self, order_key=DEFAULT_SORTING["pools"]["key"], order_asc=DEFAULT_SORTING["pools"]["asc"], offset=0, limit=None):
-		with _db_cursor() as cur:
-			_validate_column_name(cur, "v_pools", order_key)
-			cur.execute("SELECT * FROM tfm_get_pools(%%s) ORDER BY %s %s OFFSET %s LIMIT %s" % (
-				order_key,
-				"ASC" if order_asc else "DESC",
-				int(offset),
-				int(limit) if limit is not None else "ALL"
-			), (self.sid,))
-			return list(map(dict, cur.fetchall()))
-
-	def get_autotags(self, order_key="child_id", order_asc=True, offset=0, limit=None):
-		with _db_cursor() as cur:
-			_validate_column_name(cur, "v_autotags", order_key)
-			cur.execute("SELECT * FROM tfm_get_autotags(%%s) ORDER BY %s %s OFFSET %s LIMIT %s" % (
-				order_key,
-				"ASC" if order_asc else "DESC",
-				int(offset),
-				int(limit) if limit is not None else "ALL"
-			), (self.sid,))
-			return list(map(dict, cur.fetchall()))
-
-	def get_my_sessions(self, order_key="started", order_asc=False, offset=0, limit=None):
-		with _db_cursor() as cur:
-			_validate_column_name(cur, "v_sessions", order_key)
-			cur.execute("SELECT * FROM tfm_get_my_sessions(%%s) ORDER BY %s %s OFFSET %s LIMIT %s" % (
-				order_key,
-				"ASC" if order_asc else "DESC",
-				int(offset),
-				int(limit) if limit is not None else "ALL"
-			), (self.sid,))
-			return list(map(dict, cur.fetchall()))
-
-	def get_tags_by_file(self, file_id, order_key=DEFAULT_SORTING["tags"]["key"], order_asc=DEFAULT_SORTING["tags"]["asc"], offset=0, limit=None):
-		with _db_cursor() as cur:
-			_validate_column_name(cur, "v_tags", order_key)
-			cur.execute("SELECT * FROM tfm_get_tags_by_file(%%s, %%s) ORDER BY %s %s OFFSET %s LIMIT %s" % (
-				order_key,
-				"ASC" if order_asc else "DESC",
-				int(offset),
-				int(limit) if limit is not None else "ALL"
-			), (self.sid, file_id))
-			return list(map(dict, cur.fetchall()))
-
-	def get_files_by_tag(self, tag_id, order_key=DEFAULT_SORTING["files"]["key"], order_asc=DEFAULT_SORTING["files"]["asc"], offset=0, limit=None):
-		with _db_cursor() as cur:
-			_validate_column_name(cur, "v_files", order_key)
-			cur.execute("SELECT * FROM tfm_get_files_by_tag(%%s, %%s) ORDER BY %s %s OFFSET %s LIMIT %s" % (
-				order_key,
-				"ASC" if order_asc else "DESC",
-				int(offset),
-				int(limit) if limit is not None else "ALL"
-			), (self.sid, tag_id))
-			return list(map(dict, cur.fetchall()))
-
-	def get_files_by_pool(self, pool_id, order_key=DEFAULT_SORTING["files"]["key"], order_asc=DEFAULT_SORTING["files"]["asc"], offset=0, limit=None):
-		with _db_cursor() as cur:
-			_validate_column_name(cur, "v_files", order_key)
-			cur.execute("SELECT * FROM tfm_get_files_by_pool(%%s, %%s) ORDER BY %s %s OFFSET %s LIMIT %s" % (
-				order_key,
-				"ASC" if order_asc else "DESC",
-				int(offset),
-				int(limit) if limit is not None else "ALL"
-			), (self.sid, pool_id))
-			return list(map(dict, cur.fetchall()))
-
-	def get_parent_tags(self, tag_id, order_key=DEFAULT_SORTING["tags"]["key"], order_asc=DEFAULT_SORTING["tags"]["asc"], offset=0, limit=None):
-		with _db_cursor() as cur:
-			_validate_column_name(cur, "v_tags", order_key)
-			cur.execute("SELECT * FROM tfm_get_parent_tags(%%s, %%s) ORDER BY %s %s OFFSET %s LIMIT %s" % (
-				order_key,
-				"ASC" if order_asc else "DESC",
-				int(offset),
-				int(limit) if limit is not None else "ALL"
-			), (self.sid, tag_id))
-			return list(map(dict, cur.fetchall()))
-
-	def get_my_file_views(self, file_id=None, order_key="datetime", order_asc=False, offset=0, limit=None):
-		with _db_cursor() as cur:
-			_validate_column_name(cur, "v_files", order_key)
-			cur.execute("SELECT * FROM tfm_get_my_file_views(%%s, %%s) ORDER BY %s %s OFFSET %s LIMIT %s" % (
-				order_key,
-				"ASC" if order_asc else "DESC",
-				int(offset),
-				int(limit) if limit is not None else "ALL"
-			), (self.sid, file_id))
-			return list(map(dict, cur.fetchall()))
-
-	def get_file(self, file_id):
-		with _db_cursor() as cur:
-			cur.execute("SELECT * FROM tfm_get_files(%s) WHERE id=%s", (self.sid, file_id))
-			return cur.fetchone()
-
-	def get_tag(self, tag_id):
-		with _db_cursor() as cur:
-			cur.execute("SELECT * FROM tfm_get_tags(%s) WHERE id=%s", (self.sid, tag_id))
-			return cur.fetchone()
-
-	def get_category(self, category_id):
-		with _db_cursor() as cur:
-			cur.execute("SELECT * FROM tfm_get_categories(%s) WHERE id=%s", (self.sid, category_id))
-			return cur.fetchone()
-
-	def view_file(self, file_id):
-		with _db_cursor() as cur:
-			cur.execute("CALL tfm_view_file(%s, %s)", (self.sid, file_id))
-
-	def add_file(self, path, datetime=None, notes=None, is_private=None, orig_name=True):
-		if not isfile(path):
-			raise FileNotFoundError("No such file '%s'" % path)
-		if not access(conf["Paths"]["Files"], W_OK) or not access(conf["Paths"]["Thumbs"], W_OK):
-			raise PermissionError("Invalid directories for files and thumbs")
-		mime = mage.from_file(path)
-		if orig_name == True:
-			orig_name = basename(path)
-		with _db_cursor() as cur:
-			cur.execute("SELECT * FROM tfm_add_file(%s, %s, %s, %s, %s, %s)", (self.sid, mime, datetime, notes, is_private, orig_name))
-			res = cur.fetchone()
-			file_id = res["f_id"]
-			ext = res["ext"]
-			file_path = join(conf["Paths"]["Files"], file_id)
-			move(path, file_path)
-			thumb_path = previewer.get_jpeg_preview(file_path, height=160, width=160)
-			preview_path = previewer.get_jpeg_preview(file_path, height=1080, width=1920)
-			chmod(file_path, 0o664)
-			chmod(thumb_path, 0o664)
-			chmod(preview_path, 0o664)
-			return file_id, ext
-
-	def add_tag(self, name, notes=None, color=None, category_id=None, is_private=None):
-		if color is not None:
-			color = color.replace('#', '')
-		if not category_id:
-			category_id = None
-		with _db_cursor() as cur:
-			cur.execute("SELECT tfm_add_tag(%s, %s, %s, %s, %s, %s) AS id", (self.sid, name, notes, color, category_id, is_private))
-			return cur.fetchone()["id"]
-
-	def add_category(self, name, notes=None, color=None, is_private=None):
-		if color is not None:
-			color = color.replace('#', '')
-		with _db_cursor() as cur:
-			cur.execute("SELECT tfm_add_category(%s, %s, %s, %s, %s) AS id", (self.sid, name, notes, color, is_private))
-			return cur.fetchone()["id"]
-
-	def add_pool(self, name, notes=None, parent_id=None, is_private=None):
-		with _db_cursor() as cur:
-			cur.execute("SELECT tfm_add_pool(%s, %s, %s, %s, %s) AS id", (self.sid, name, notes, parent_id, is_private))
-			return cur.fetchone()["id"]
-
-	def add_autotag(self, child_id, parent_id, is_active=None, apply_to_existing=None):
-		with _db_cursor() as cur:
-			cur.execute("SELECT tfm_add_autotag(%s, %s, %s, %s, %s) AS added", (self.sid, child_id, parent_id, is_active, apply_to_existing))
-			return cur.fetchone()["added"]
-
-	def add_file_to_tag(self, file_id, tag_id):
-		with _db_cursor() as cur:
-			cur.execute("SELECT tfm_add_file_to_tag(%s, %s, %s) AS id", (self.sid, file_id, tag_id))
-			return list(map(lambda t: t["id"], cur.fetchall()))
-
-	def add_file_to_pool(self, file_id, pool_id):
-		with _db_cursor() as cur:
-			cur.execute("SELECT tfm_add_file_to_pool(%s, %s, %s) AS added", (self.sid, file_id, pool_id))
-			return cur.fetchone()["added"]
-
-	def edit_file(self, file_id, mime=None, datetime=None, notes=None, is_private=None):
-		with _db_cursor() as cur:
-			cur.execute("CALL tfm_edit_file(%s, %s, %s, %s, %s, %s)", (self.sid, file_id, mime, datetime, notes, is_private))
-
-	def edit_tag(self, tag_id, name=None, notes=None, color=None, category_id=None, is_private=None):
-		if color is not None:
-			color = color.replace('#', '')
-		if not category_id:
-			category_id = None
-		with _db_cursor() as cur:
-			cur.execute("CALL tfm_edit_tag(%s, %s, %s, %s, %s, %s, %s)", (self.sid, tag_id, name, notes, color, category_id, is_private))
-
-	def edit_category(self, category_id, name=None, notes=None, color=None, is_private=None):
-		if color is not None:
-			color = color.replace('#', '')
-		with _db_cursor() as cur:
-			cur.execute("CALL tfm_edit_category(%s, %s, %s, %s, %s, %s)", (self.sid, category_id, name, notes, color, is_private))
-
-	def edit_pool(self, pool_id, name=None, notes=None, parent_id=None, is_private=None):
-		with _db_cursor() as cur:
-			cur.execute("CALL tfm_edit_pool(%s, %s, %s, %s, %s, %s)", (self.sid, pool_id, name, notes, parent_id, is_private))
-
-	def remove_file(self, file_id):
-		with _db_cursor() as cur:
-			cur.execute("CALL tfm_remove_file(%s, %s)", (self.sid, file_id))
-			if system("rm %s/%s*" % (conf["Paths"]["Files"], file_id)):
-				raise RuntimeError("Failed to remove file '%s'" % file_id)
-
-	def remove_tag(self, tag_id):
-		with _db_cursor() as cur:
-			cur.execute("CALL tfm_remove_tag(%s, %s)", (self.sid, tag_id))
-
-	def remove_category(self, category_id):
-		with _db_cursor() as cur:
-			cur.execute("CALL tfm_remove_category(%s, %s)", (self.sid, category_id))
-
-	def remove_pool(self, pool_id):
-		with _db_cursor() as cur:
-			cur.execute("CALL tfm_remove_pool(%s, %s)", (self.sid, pool_id))
-
-	def remove_autotag(self, child_id, parent_id):
-		with _db_cursor() as cur:
-			cur.execute("CALL tfm_remove_autotag(%s, %s, %s)", (self.sid, child_id, parent_id))
-
-	def remove_file_to_tag(self, file_id, tag_id):
-		with _db_cursor() as cur:
-			cur.execute("CALL tfm_remove_file_to_tag(%s, %s, %s)", (self.sid, file_id, tag_id))
-
-	def remove_file_to_pool(self, file_id, pool_id):
-		with _db_cursor() as cur:
-			cur.execute("CALL tfm_remove_file_to_pool(%s, %s, %s)", (self.sid, file_id, pool_id))
@@ -1,22 +0,0 @@
-package main
-
-import (
-	"tanabata/internal/storage/postgres"
-)
-
-func main() {
-	postgres.InitDB("postgres://hiko:taikibansei@192.168.0.25/Tanabata_new?application_name=Tanabata%20testing")
-	// test_json := json.RawMessage([]byte("{\"valery\": \"ponosoff\"}"))
-	// data, statusCode, err := db.FileGetSlice(1, "", "+2", -2, 0)
-	// data, statusCode, err := db.FileGet(1, "0197d056-cfb0-76b5-97e0-bd588826393c")
-	// data, statusCode, err := db.FileAdd(1, "ABOBA.png", "image/png", time.Now(), "slkdfjsldkflsdkfj;sldkf", test_json)
-	// statusCode, err := db.FileUpdate(2, "0197d159-bf3a-7617-a3a8-a4a9fc39eca6", map[string]interface{}{
-	// 	"name": "ponos.png",
-	// })
-	// statusCode, err := db.FileDelete(1, "0197d155-848f-7221-ba4a-4660f257c7d5")
-	// v, e, err := postgres.FileGetAccess(1, "0197d15a-57f9-712c-991e-c512290e774f")
-	// fmt.Printf("V: %s, E: %s\n", v, e)
-	// fmt.Printf("Status: %d\n", statusCode)
-	// fmt.Printf("Error:  %s\n", err)
-	// fmt.Printf("%+v\n", data)
-}
@@ -1,22 +0,0 @@
-package main
-
-import (
-	"fmt"
-
-	"tanabata/db"
-)
-
-func main() {
-	db.InitDB("postgres://hiko:taikibansei@192.168.0.25/Tanabata_new?application_name=Tanabata%20testing")
-	// test_json := json.RawMessage([]byte("{\"valery\": \"ponosoff\"}"))
-	// data, statusCode, err := db.FileGetSlice(2, "", "+2", -2, 0)
-	// data, statusCode, err := db.FileGet(1, "0197d056-cfb0-76b5-97e0-bd588826393c")
-	// data, statusCode, err := db.FileAdd(1, "ABOBA.png", "image/png", time.Now(), "slkdfjsldkflsdkfj;sldkf", test_json)
-	// statusCode, err := db.FileUpdate(2, "0197d159-bf3a-7617-a3a8-a4a9fc39eca6", map[string]interface{}{
-	// 	"name": "ponos.png",
-	// })
-	statusCode, err := db.FileDelete(1, "0197d155-848f-7221-ba4a-4660f257c7d5")
-	fmt.Printf("Status: %d\n", statusCode)
-	fmt.Printf("Error:  %s\n", err)
-	// fmt.Printf("%+v\n", data)
-}
@@ -1,79 +0,0 @@
-package db
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"net/http"
-	"time"
-
-	"github.com/jackc/pgx/v5"
-	"github.com/jackc/pgx/v5/pgconn"
-	"github.com/jackc/pgx/v5/pgxpool"
-)
-
-var connPool *pgxpool.Pool
-
-func InitDB(connString string) error {
-	poolConfig, err := pgxpool.ParseConfig(connString)
-	if err != nil {
-		return fmt.Errorf("error while parsing connection string: %w", err)
-	}
-
-	poolConfig.MaxConns = 100
-	poolConfig.MinConns = 0
-	poolConfig.MaxConnLifetime = time.Hour
-	poolConfig.HealthCheckPeriod = 30 * time.Second
-
-	connPool, err = pgxpool.NewWithConfig(context.Background(), poolConfig)
-	if err != nil {
-		return fmt.Errorf("error while initializing DB connections pool: %w", err)
-	}
-	return nil
-}
-
-func transaction(handler func(context.Context, pgx.Tx) (statusCode int, err error)) (statusCode int, err error) {
-	ctx := context.Background()
-	tx, err := connPool.Begin(ctx)
-	if err != nil {
-		statusCode = http.StatusInternalServerError
-		return
-	}
-	statusCode, err = handler(ctx, tx)
-	if err != nil {
-		tx.Rollback(ctx)
-		return
-	}
-	err = tx.Commit(ctx)
-	if err != nil {
-		statusCode = http.StatusInternalServerError
-	}
-	return
-}
-
-// Handle database error
-func handleDBError(errIn error) (statusCode int, err error) {
-	if errIn == nil {
-		statusCode = http.StatusOK
-		return
-	}
-	if errors.Is(errIn, pgx.ErrNoRows) {
-		err = fmt.Errorf("not found")
-		statusCode = http.StatusNotFound
-		return
-	}
-	var pgErr *pgconn.PgError
-	if errors.As(errIn, &pgErr) {
-		switch pgErr.Code {
-		case "22P02", "22007": // Invalid data format
-			err = fmt.Errorf("%s", pgErr.Message)
-			statusCode = http.StatusBadRequest
-			return
-		case "23505": // Unique constraint violation
-			err = fmt.Errorf("already exists")
-			statusCode = http.StatusConflict
-			return
-		}
-	}
-	return http.StatusInternalServerError, errIn
-}
@@ -1,53 +0,0 @@
-package db
-
-import (
-	"fmt"
-	"net/http"
-	"strconv"
-	"strings"
-)
-
-// Convert "filter" URL param to SQL "WHERE" condition
-func filterToSQL(filter string) (sql string, statusCode int, err error) {
-	// filterTokens := strings.Split(string(filter), ";")
-	sql = "(true)"
-	return
-}
-
-// Convert "sort" URL param to SQL "ORDER BY"
-func sortToSQL(sort string) (sql string, statusCode int, err error) {
-	if sort == "" {
-		return
-	}
-	sortOptions := strings.Split(sort, ",")
-	sql = " ORDER BY "
-	for i, sortOption := range sortOptions {
-		sortOrder := sortOption[:1]
-		sortColumn := sortOption[1:]
-		// parse sorting order marker
-		switch sortOrder {
-		case "+":
-			sortOrder = "ASC"
-		case "-":
-			sortOrder = "DESC"
-		default:
-			err = fmt.Errorf("invalid sorting order mark: %q", sortOrder)
-			statusCode = http.StatusBadRequest
-			return
-		}
-		// validate sorting column
-		var n int
-		n, err = strconv.Atoi(sortColumn)
-		if err != nil || n < 0 {
-			err = fmt.Errorf("invalid sorting column: %q", sortColumn)
-			statusCode = http.StatusBadRequest
-			return
-		}
-		// add sorting option to query
-		if i > 0 {
-			sql += ","
-		}
-		sql += fmt.Sprintf("%s %s NULLS LAST", sortColumn, sortOrder)
-	}
-	return
-}
@@ -1,19 +0,0 @@
-module tanabata
-
-go 1.23.0
-
-toolchain go1.23.10
-
-require github.com/jackc/pgx/v5 v5.7.5
-
-require (
-	github.com/jackc/pgpassfile v1.0.0 // indirect
-	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
-	github.com/jackc/pgx v3.6.2+incompatible // indirect
-	github.com/jackc/puddle/v2 v2.2.2 // indirect
-	github.com/pkg/errors v0.9.1 // indirect
-	github.com/stretchr/testify v1.9.0 // indirect
-	golang.org/x/crypto v0.37.0 // indirect
-	golang.org/x/sync v0.13.0 // indirect
-	golang.org/x/text v0.24.0 // indirect
-)
@@ -1,32 +0,0 @@
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
-github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
-github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
-github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
-github.com/jackc/pgx v3.6.2+incompatible h1:2zP5OD7kiyR3xzRYMhOcXVvkDZsImVXfj+yIyTQf3/o=
-github.com/jackc/pgx v3.6.2+incompatible/go.mod h1:0ZGrqGqkRlliWnWB4zKnWtjbSWbGkVEFm4TeybAXq+I=
-github.com/jackc/pgx/v5 v5.7.5 h1:JHGfMnQY+IEtGM63d+NGMjoRpysB2JBwDr5fsngwmJs=
-github.com/jackc/pgx/v5 v5.7.5/go.mod h1:aruU7o91Tc2q2cFp5h4uP3f6ztExVpyVv88Xl/8Vl8M=
-github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
-github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
-github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
-github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
-github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-golang.org/x/crypto v0.37.0 h1:kJNSjF/Xp7kU0iB2Z+9viTPMW4EqqsrywMXLJOOsXSE=
-golang.org/x/crypto v0.37.0/go.mod h1:vg+k43peMZ0pUMhYmVAWysMK35e6ioLh3wB8ZCAfbVc=
-golang.org/x/sync v0.13.0 h1:AauUjRAJ9OSnvULf/ARrrVywoJDy0YS2AwQ98I37610=
-golang.org/x/sync v0.13.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
-golang.org/x/text v0.24.0 h1:dd5Bzh4yt5KYA8f9CJHCP4FB4D51c2c6JvN37xJJkJ0=
-golang.org/x/text v0.24.0/go.mod h1:L8rBsPeo2pSS+xqN0d5u2ikmjtmoJbDBT1b7nHvFCdU=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
@@ -1,16 +0,0 @@
-package postgres
-
-import "context"
-
-func UserLogin(ctx context.Context, name, password string) (user_id int, err error) {
-	row := connPool.QueryRow(ctx, "SELECT id FROM users WHERE name=$1 AND password=crypt($2, password)", name, password)
-	err = row.Scan(&user_id)
-	return
-}
-
-func UserAuth(ctx context.Context, user_id int) (ok, isAdmin bool) {
-	row := connPool.QueryRow(ctx, "SELECT is_admin FROM users WHERE id=$1", user_id)
-	err := row.Scan(&isAdmin)
-	ok = (err == nil)
-	return
-}
@@ -1,268 +0,0 @@
-package postgres
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"net/http"
-	"time"
-
-	"github.com/jackc/pgx/v5"
-	"github.com/jackc/pgx/v5/pgxpool"
-
-	"tanabata/internal/domain"
-)
-
-type FileStore struct {
-	db *pgxpool.Pool
-}
-
-func NewFileStore(db *pgxpool.Pool) *FileStore {
-	return &FileStore{db: db}
-}
-
-// Get user's access rights to file
-func (s *FileStore) getAccess(user_id int, file_id string) (canView, canEdit bool, err error) {
-	ctx := context.Background()
-	row := connPool.QueryRow(ctx, `
-		SELECT 
-			COALESCE(a.view, FALSE) OR f.creator_id=$1 OR COALESCE(u.is_admin, FALSE),
-			COALESCE(a.edit, FALSE) OR f.creator_id=$1 OR COALESCE(u.is_admin, FALSE)
-		FROM data.files f
-		LEFT JOIN acl.files a ON a.file_id=f.id AND a.user_id=$1
-		LEFT JOIN system.users u ON u.id=$1
-		WHERE f.id=$2
-		`, user_id, file_id)
-	err = row.Scan(&canView, &canEdit)
-	return
-}
-
-// Get a set of files
-func (s *FileStore) GetSlice(user_id int, filter, sort string, limit, offset int) (files domain.Slice[domain.FileItem], statusCode int, err error) {
-	filterCond, statusCode, err := filterToSQL(filter)
-	if err != nil {
-		return
-	}
-	sortExpr, statusCode, err := sortToSQL(sort)
-	if err != nil {
-		return
-	}
-	// prepare query
-	query := `
-	SELECT
-		f.id,
-		f.name,
-		m.name,
-		m.extension,
-		uuid_extract_timestamp(f.id),
-		u.name,
-		u.is_admin
-	FROM data.files f
-	JOIN system.mime m ON m.id=f.mime_id
-	JOIN system.users u ON u.id=f.creator_id
-	WHERE NOT f.is_deleted AND (f.creator_id=$1 OR (SELECT view FROM acl.files WHERE file_id=f.id AND user_id=$1) OR (SELECT is_admin FROM system.users WHERE id=$1)) AND
-	`
-	query += filterCond
-	queryCount := query
-	query += sortExpr
-	if limit >= 0 {
-		query += fmt.Sprintf(" LIMIT %d", limit)
-	}
-	if offset > 0 {
-		query += fmt.Sprintf(" OFFSET %d", offset)
-	}
-	// execute query
-	statusCode, err = transaction(func(ctx context.Context, tx pgx.Tx) (statusCode int, err error) {
-		rows, err := tx.Query(ctx, query, user_id)
-		if err != nil {
-			statusCode, err = handleDBError(err)
-			return
-		}
-		defer rows.Close()
-		count := 0
-		for rows.Next() {
-			var file domain.FileItem
-			err = rows.Scan(&file.ID, &file.Name, &file.MIME.Name, &file.MIME.Extension, &file.CreatedAt, &file.Creator.Name, &file.Creator.IsAdmin)
-			if err != nil {
-				statusCode = http.StatusInternalServerError
-				return
-			}
-			files.Data = append(files.Data, file)
-			count++
-		}
-		err = rows.Err()
-		if err != nil {
-			statusCode = http.StatusInternalServerError
-			return
-		}
-		files.Pagination.Limit = limit
-		files.Pagination.Offset = offset
-		files.Pagination.Count = count
-		row := tx.QueryRow(ctx, fmt.Sprintf("SELECT COUNT(*) FROM (%s) tmp", queryCount), user_id)
-		err = row.Scan(&files.Pagination.Total)
-		if err != nil {
-			statusCode = http.StatusInternalServerError
-		}
-		return
-	})
-	if err == nil {
-		statusCode = http.StatusOK
-	}
-	return
-}
-
-// Get file
-func (s *FileStore) Get(user_id int, file_id string) (file domain.FileFull, statusCode int, err error) {
-	ctx := context.Background()
-	row := connPool.QueryRow(ctx, `
-		SELECT
-			f.id,
-			f.name,
-			m.name,
-			m.extension,
-			uuid_extract_timestamp(f.id),
-			u.name,
-			u.is_admin,
-			f.notes,
-			f.metadata,
-			(SELECT COUNT(*) FROM activity.file_views fv WHERE fv.file_id=$2 AND fv.user_id=$1)
-		FROM data.files f
-		JOIN system.mime m ON m.id=f.mime_id
-		JOIN system.users u ON u.id=f.creator_id
-		WHERE NOT f.is_deleted AND f.id=$2 AND (f.creator_id=$1 OR (SELECT view FROM acl.files WHERE file_id=$2 AND user_id=$1) OR (SELECT is_admin FROM system.users WHERE id=$1))
-		`, user_id, file_id)
-	err = row.Scan(&file.ID, &file.Name, &file.MIME.Name, &file.MIME.Extension, &file.CreatedAt, &file.Creator.Name, &file.Creator.IsAdmin, &file.Notes, &file.Metadata, &file.Viewed)
-	if err != nil {
-		statusCode, err = handleDBError(err)
-		return
-	}
-	rows, err := connPool.Query(ctx, `
-		SELECT
-			t.id,
-			t.name,
-			COALESCE(t.color, c.color)
-		FROM data.tags t
-		LEFT JOIN data.categories c ON c.id=t.category_id
-		JOIN data.file_tag ft ON ft.tag_id=t.id
-		WHERE ft.file_id=$1
-		`, file_id)
-	if err != nil {
-		statusCode, err = handleDBError(err)
-		return
-	}
-	defer rows.Close()
-	for rows.Next() {
-		var tag domain.TagCore
-		err = rows.Scan(&tag.ID, &tag.Name, &tag.Color)
-		if err != nil {
-			statusCode = http.StatusInternalServerError
-			return
-		}
-		file.Tags = append(file.Tags, tag)
-	}
-	err = rows.Err()
-	if err != nil {
-		statusCode = http.StatusInternalServerError
-		return
-	}
-	statusCode = http.StatusOK
-	return
-}
-
-// Add file
-func (s *FileStore) Add(user_id int, name, mime string, datetime time.Time, notes string, metadata json.RawMessage) (file domain.FileCore, statusCode int, err error) {
-	ctx := context.Background()
-	var mime_id int
-	var extension string
-	row := connPool.QueryRow(ctx, "SELECT id, extension FROM system.mime WHERE name=$1", mime)
-	err = row.Scan(&mime_id, &extension)
-	if err != nil {
-		if err == pgx.ErrNoRows {
-			err = fmt.Errorf("unsupported file type: %q", mime)
-			statusCode = http.StatusBadRequest
-		} else {
-			statusCode, err = handleDBError(err)
-		}
-		return
-	}
-	row = connPool.QueryRow(ctx, `
-	INSERT INTO data.files (name, mime_id, datetime, creator_id, notes, metadata)
-	VALUES (NULLIF($1, ''), $2, $3, $4, NULLIF($5 ,''), $6)
-	RETURNING id
-	`, name, mime_id, datetime, user_id, notes, metadata)
-	err = row.Scan(&file.ID)
-	if err != nil {
-		statusCode, err = handleDBError(err)
-		return
-	}
-	file.Name.String = name
-	file.Name.Valid = (name != "")
-	file.MIME.Name = mime
-	file.MIME.Extension = extension
-	statusCode = http.StatusOK
-	return
-}
-
-// Update file
-func (s *FileStore) Update(user_id int, file_id string, updates map[string]interface{}) (statusCode int, err error) {
-	if len(updates) == 0 {
-		err = fmt.Errorf("no fields provided for update")
-		statusCode = http.StatusBadRequest
-		return
-	}
-	writableFields := map[string]bool{
-		"name":     true,
-		"datetime": true,
-		"notes":    true,
-		"metadata": true,
-	}
-	query := "UPDATE data.files SET"
-	newValues := []interface{}{user_id}
-	count := 2
-	for field, value := range updates {
-		if !writableFields[field] {
-			err = fmt.Errorf("invalid field: %q", field)
-			statusCode = http.StatusBadRequest
-			return
-		}
-		query += fmt.Sprintf(" %s=NULLIF($%d, '')", field, count)
-		newValues = append(newValues, value)
-		count++
-	}
-	query += fmt.Sprintf(
-		" WHERE id=$%d AND (creator_id=$1 OR (SELECT edit FROM acl.files WHERE file_id=$%d AND user_id=$1) OR (SELECT is_admin FROM system.users WHERE id=$1))",
-		count, count)
-	newValues = append(newValues, file_id)
-	ctx := context.Background()
-	commandTag, err := connPool.Exec(ctx, query, newValues...)
-	if err != nil {
-		statusCode, err = handleDBError(err)
-		return
-	}
-	if commandTag.RowsAffected() == 0 {
-		err = fmt.Errorf("not found")
-		statusCode = http.StatusNotFound
-		return
-	}
-	statusCode = http.StatusNoContent
-	return
-}
-
-// Delete file
-func (s *FileStore) Delete(user_id int, file_id string) (statusCode int, err error) {
-	ctx := context.Background()
-	commandTag, err := connPool.Exec(ctx,
-		"DELETE FROM data.files WHERE id=$2 AND (creator_id=$1 OR (SELECT edit FROM acl.files WHERE file_id=$2 AND user_id=$1) OR (SELECT is_admin FROM system.users WHERE id=$1))",
-		user_id, file_id)
-	if err != nil {
-		statusCode, err = handleDBError(err)
-		return
-	}
-	if commandTag.RowsAffected() == 0 {
-		err = fmt.Errorf("not found")
-		statusCode = http.StatusNotFound
-		return
-	}
-	statusCode = http.StatusNoContent
-	return
-}
@@ -1,92 +0,0 @@
-package postgres
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"net/http"
-	"time"
-
-	"github.com/jackc/pgx/v5"
-	"github.com/jackc/pgx/v5/pgconn"
-	"github.com/jackc/pgx/v5/pgxpool"
-)
-
-type Storage struct {
-	db *pgxpool.Pool
-}
-
-var connPool *pgxpool.Pool
-
-// Initialize new database storage
-func New(dbURL string) (*Storage, error) {
-	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
-	defer cancel()
-	config, err := pgxpool.ParseConfig(dbURL)
-	if err != nil {
-		return nil, fmt.Errorf("failed to parse DB URL: %w", err)
-	}
-	config.MaxConns = 10
-	config.MinConns = 2
-	config.HealthCheckPeriod = time.Minute
-	db, err := pgxpool.NewWithConfig(ctx, config)
-	if err != nil {
-		return nil, fmt.Errorf("failed to connect to database: %w", err)
-	}
-	err = db.Ping(ctx)
-	if err != nil {
-		return nil, fmt.Errorf("database ping failed: %w", err)
-	}
-	return &Storage{db: db}, nil
-}
-
-// Close database storage
-func (s *Storage) Close() {
-	s.db.Close()
-}
-
-// Run handler inside transaction
-func (s *Storage) transaction(ctx context.Context, handler func(context.Context, pgx.Tx) (statusCode int, err error)) (statusCode int, err error) {
-	tx, err := connPool.Begin(ctx)
-	if err != nil {
-		statusCode = http.StatusInternalServerError
-		return
-	}
-	statusCode, err = handler(ctx, tx)
-	if err != nil {
-		tx.Rollback(ctx)
-		return
-	}
-	err = tx.Commit(ctx)
-	if err != nil {
-		statusCode = http.StatusInternalServerError
-	}
-	return
-}
-
-// Handle database error
-func (s *Storage) handleDBError(errIn error) (statusCode int, err error) {
-	if errIn == nil {
-		statusCode = http.StatusOK
-		return
-	}
-	if errors.Is(errIn, pgx.ErrNoRows) {
-		err = fmt.Errorf("not found")
-		statusCode = http.StatusNotFound
-		return
-	}
-	var pgErr *pgconn.PgError
-	if errors.As(errIn, &pgErr) {
-		switch pgErr.Code {
-		case "22P02", "22007": // Invalid data format
-			err = fmt.Errorf("%s", pgErr.Message)
-			statusCode = http.StatusBadRequest
-			return
-		case "23505": // Unique constraint violation
-			err = fmt.Errorf("already exists")
-			statusCode = http.StatusConflict
-			return
-		}
-	}
-	return http.StatusInternalServerError, errIn
-}
@@ -1,21 +0,0 @@
-package storage
-
-import (
-	"encoding/json"
-	"time"
-
-	"tanabata/internal/domain"
-)
-
-type Storage interface {
-	FileRepository
-	Close()
-}
-
-type FileRepository interface {
-	GetSlice(user_id int, filter, sort string, limit, offset int) (files domain.Slice[domain.FileItem], statusCode int, err error)
-	Get(user_id int, file_id string) (file domain.FileFull, statusCode int, err error)
-	Add(user_id int, name, mime string, datetime time.Time, notes string, metadata json.RawMessage) (file domain.FileCore, statusCode int, err error)
-	Update(user_id int, file_id string, updates map[string]interface{}) (statusCode int, err error)
-	Delete(user_id int, file_id string) (statusCode int, err error)
-}
@@ -1,120 +0,0 @@
-package models
-
-import (
-	"encoding/json"
-	"time"
-
-	"github.com/jackc/pgx/v5/pgtype"
-)
-
-type User struct {
-	Name      string `json:"name"`
-	IsAdmin   bool   `json:"isAdmin"`
-	CanCreate bool   `json:"canCreate"`
-}
-
-type MIME struct {
-	Name      string `json:"name"`
-	Extension string `json:"extension"`
-}
-
-type (
-	CategoryCore struct {
-		ID    string      `json:"id"`
-		Name  string      `json:"name"`
-		Color pgtype.Text `json:"color"`
-	}
-	CategoryItem struct {
-		CategoryCore
-	}
-	CategoryFull struct {
-		CategoryCore
-		CreatedAt time.Time   `json:"createdAt"`
-		Creator   User        `json:"creator"`
-		Notes     pgtype.Text `json:"notes"`
-	}
-)
-
-type (
-	FileCore struct {
-		ID   string      `json:"id"`
-		Name pgtype.Text `json:"name"`
-		MIME MIME        `json:"mime"`
-	}
-	FileItem struct {
-		FileCore
-		CreatedAt time.Time `json:"createdAt"`
-		Creator   User      `json:"creator"`
-	}
-	FileFull struct {
-		FileCore
-		CreatedAt time.Time       `json:"createdAt"`
-		Creator   User            `json:"creator"`
-		Notes     pgtype.Text     `json:"notes"`
-		Metadata  json.RawMessage `json:"metadata"`
-		Tags      []TagCore       `json:"tags"`
-		Viewed    int             `json:"viewed"`
-	}
-)
-
-type (
-	TagCore struct {
-		ID    string      `json:"id"`
-		Name  string      `json:"name"`
-		Color pgtype.Text `json:"color"`
-	}
-	TagItem struct {
-		TagCore
-		Category CategoryCore `json:"category"`
-	}
-	TagFull struct {
-		TagCore
-		Category  CategoryCore `json:"category"`
-		CreatedAt time.Time    `json:"createdAt"`
-		Creator   User         `json:"creator"`
-		Notes     pgtype.Text  `json:"notes"`
-	}
-)
-
-type Autotag struct {
-	TriggerTag TagCore `json:"triggerTag"`
-	AddTag     TagCore `json:"addTag"`
-	IsActive   bool    `json:"isActive"`
-}
-
-type (
-	PoolCore struct {
-		ID   string `json:"id"`
-		Name string `json:"name"`
-	}
-	PoolItem struct {
-		PoolCore
-	}
-	PoolFull struct {
-		PoolCore
-		CreatedAt time.Time   `json:"createdAt"`
-		Creator   User        `json:"creator"`
-		Notes     pgtype.Text `json:"notes"`
-		Viewed    int         `json:"viewed"`
-	}
-)
-
-type Session struct {
-	ID           int       `json:"id"`
-	UserAgent    string    `json:"userAgent"`
-	StartedAt    time.Time `json:"startedAt"`
-	ExpiresAt    time.Time `json:"expiresAt"`
-	LastActivity time.Time `json:"lastActivity"`
-}
-
-type Pagination struct {
-	Total  int `json:"total"`
-	Offset int `json:"offset"`
-	Limit  int `json:"limit"`
-	Count  int `json:"count"`
-}
-
-type Slice[T any] struct {
-	Pagination Pagination `json:"pagination"`
-	Data       []T        `json:"data"`
-}
@@ -1,36 +0,0 @@
-body {
-	justify-content: center;
-	align-items: center;
-}
-
-.decoration {
-	position: absolute;
-	top: 0;
-}
-
-.decoration.left {
-	left: 0;
-	width: 20vw;
-}
-
-.decoration.right {
-	right: 0;
-	width: 20vw;
-}
-
-#auth {
-	max-width: 100%;
-}
-
-#auth h1 {
-	margin-bottom: 28px;
-}
-
-#auth .form-control {
-	margin: 14px 0;
-	border-radius: 14px;
-}
-
-#login {
-	margin-top: 20px;
-}
@@ -1,54 +0,0 @@
-html, body {
-	margin: 0;
-	padding: 0;
-}
-
-body {
-	background-color: #312F45;
-	color: #f0f0f0;
-	position: absolute;
-	top: 0;
-	left: 0;
-	bottom: 0;
-	right: 0;
-	min-height: 100vh;
-	display: flex;
-	flex-direction: column;
-	justify-content: space-between;
-	align-items: stretch;
-	font-family: Epilogue;
-	overflow-x: hidden;
-}
-
-.btn {
-	height: 50px;
-	width: 100%;
-	border-radius: 14px;
-	font-size: 1.5rem;
-	font-weight: 500;
-}
-
-.btn-primary {
-	background-color: #9592B5;
-	border-color: #454261;
-}
-
-.btn-primary:hover {
-	background-color: #7D7AA4;
-	border-color: #454261;
-}
-
-.btn-danger {
-	background-color: #DB6060;
-	border-color: #851E1E;
-}
-
-.btn-danger:hover {
-	background-color: #D64848;
-	border-color: #851E1E;
-}
-
-.btn-row {
-	display: flex;
-	justify-content: space-between;
-}
@@ -1,388 +0,0 @@
-header, footer {
-	margin: 0;
-	padding: 10px;
-	box-sizing: border-box;
-}
-
-header {
-	padding: 20px;
-	box-shadow: 0 5px 5px #0004;
-}
-
-.icon-header {
-	height: .8em;
-}
-
-#select {
-	cursor: pointer;
-}
-
-.sorting {
-	position: relative;
-	display: flex;
-	justify-content: space-between;
-}
-
-#sorting {
-	cursor: pointer;
-}
-
-.highlighted {
-	color: #9999AD;
-}
-
-#icon-expand {
-	height: 10px;
-}
-
-#sorting-options {
-	position: absolute;
-	right: 0;
-	top: 114%;
-	padding: 4px 10px;
-	box-sizing: border-box;
-	background-color: #111118;
-	border-radius: 10px;
-	text-align: left;
-	box-shadow: 0 0 10px black;
-	z-index: 9999;
-}
-
-.sorting-option {
-	padding: 4px 0;
-	display: flex;
-	justify-content: space-between;
-}
-
-.sorting-option input[type="radio"] {
-	float: unset;
-	margin-left: 1.8em;
-}
-
-.filtering-wrapper {
-	margin-top: 10px;
-}
-
-.filtering-block {
-	position: absolute;
-	top: 128px;
-	left: 14px;
-	right: 14px;
-	padding: 14px;
-	background-color: #111118;
-	border-radius: 10px;
-	box-shadow: 0 0 10px 4px #0004;
-	z-index: 9998;
-}
-
-main {
-	margin: 0;
-	padding: 10px;
-	height: 100%;
-	display: flex;
-	justify-content: space-between;
-	align-content: flex-start;
-	align-items: flex-start;
-	flex-wrap: wrap;
-	box-sizing: border-box;
-	overflow-x: hidden;
-	overflow-y: scroll;
-}
-
-main:after {
-	content: "";
-	flex: auto;
-}
-
-.item-preview {
-	position: relative;
-}
-
-.item-selected:after {
-	content: "";
-	display: block;
-	position: absolute;
-	top: 10px;
-	right: 10px;
-	width: 100%;
-	height: 50%;
-	background-image: url("/static/images/icon-select.svg");
-	background-size: contain;
-	background-position: right;
-	background-repeat: no-repeat;
-}
-
-.file-preview {
-	margin: 1px 0;
-	padding: 0;
-	width: 160px;
-	height: 160px;
-	max-width: calc(33vw - 7px);
-	max-height: calc(33vw - 7px);
-	overflow: hidden;
-	cursor: pointer;
-}
-
-.file-thumb {
-	width: 100%;
-	height: 100%;
-	object-fit: contain;
-	object-position: center;
-}
-
-.file-preview .overlay {
-	position: absolute;
-	top: 0;
-	right: 0;
-	bottom: 0;
-	left: 0;
-	background-color: #0002;
-}
-
-.file-preview:hover .overlay {
-	background-color: #0004;
-}
-
-.tag-preview, .filtering-token {
-	margin: 5px 5px;
-	padding: 5px 10px;
-	border-radius: 5px;
-	background-color: #444455;
-	cursor: pointer;
-}
-
-.category-preview {
-	margin: 5px 5px;
-	padding: 5px 10px;
-	border-radius: 5px;
-	background-color: #444455;
-	cursor: pointer;
-}
-
-.file {
-	margin: 0;
-	padding: 0;
-	min-width: 100vw;
-	min-height: 100vh;
-	max-width: 100vw;
-	max-height: 100vh;
-	display: flex;
-	justify-content: center;
-	align-items: center;
-	background-color: black;
-}
-
-.file .preview-img {
-	max-width: 100vw;
-	max-height: 100vh;
-}
-
-.selection-manager {
-	position: fixed;
-	left: 10px;
-	right: 10px;
-	bottom: 65px;
-	box-sizing: border-box;
-	max-height: 40vh;
-	display: flex;
-	flex-direction: column;
-	padding: 15px 10px;
-	background-color: #181721;
-	border-radius: 10px;
-	box-shadow: 0 0 5px #0008;
-}
-
-.selection-manager hr {
-	margin: 5px 0;
-}
-
-.selection-header {
-	display: flex;
-	justify-content: space-between;
-}
-
-.selection-header > * {
-	cursor: pointer;
-}
-
-#selection-edit-tags {
-	color: #4DC7ED;
-}
-
-#selection-add-to-pool {
-	color: #F5E872;
-}
-
-#selection-delete {
-	color: #DB6060;
-}
-
-.selection-tags {
-	max-height: 100%;
-	overflow-x: hidden;
-	overflow-y: scroll;
-}
-
-input[type="color"] {
-	width: 100%;
-}
-
-.tags-container, .filtering-operators, .filtering-tokens {
-	padding: 5px;
-	background-color: #212529;
-	border: 1px solid #495057;
-	border-radius: .375rem;
-	display: flex;
-	justify-content: space-between;
-	align-content: flex-start;
-	align-items: flex-start;
-	flex-wrap: wrap;
-	box-sizing: border-box;
-}
-
-.filtering-operators {
-	margin-bottom: 15px;
-}
-
-.tags-container, .filtering-tokens {
-	margin: 15px 0;
-	height: 200px;
-	overflow-x: hidden;
-	overflow-y: scroll;
-}
-
-.tags-container:after, .filtering-tokens:after {
-	content: "";
-	flex: auto;
-}
-
-.tags-container-selected {
-	height: 100px;
-}
-
-#files-filter {
-	margin-bottom: 0;
-	height: 56px;
-}
-
-.viewer-wrapper {
-	position: absolute;
-	left: 0;
-	top: 0;
-	right: 0;
-	bottom: 0;
-	background-color: #000a;
-	display: flex;
-	justify-content: center;
-/*	overflow-y: scroll;*/
-}
-
-.viewer-nav {
-	position: absolute;
-	top: 0;
-	bottom: 0;
-	display: flex;
-	justify-content: center;
-	align-items: center;
-	cursor: pointer;
-}
-
-.viewer-nav:hover {
-	background-color: #b4adff40;
-}
-
-.viewer-nav-prev {
-	left: 0;
-	right: 80vw;
-}
-
-.viewer-nav-next {
-	left: 80vw;
-	right: 0;
-}
-
-.viewer-nav-close {
-	left: 0;
-	right: 0;
-	bottom: unset;
-	height: 15vh;
-}
-
-.viewer-nav-icon {
-	width: 20px;
-	height: 32px;
-}
-
-.viewer-nav-close > .viewer-nav-icon {
-	width: 16px;
-	height: 16px;
-}
-
-#viewer {
-	width: 100%;
-	height: 100%;
-	max-width: 100%;
-}
-
-.sessions-wrapper {
-	padding: 14px;
-	background-color: #111118;
-	border-radius: 10px;
-}
-
-.btn-terminate {
-	height: 20px;
-	cursor: pointer;
-}
-
-footer {
-	display: flex;
-	justify-content: space-between;
-	align-items: center;
-	background-color: #0007;
-}
-
-.nav {
-	display: flex;
-	justify-content: center;
-	align-items: center;
-	height: 40px;
-	width: 18vw;
-	background: transparent;
-	border: 0;
-	border-radius: 10px;
-	outline: 0;
-}
-
-.nav.curr, .nav:hover {
-	background-color: #343249;
-}
-
-.navicon {
-	display: block;
-	height: 30px;
-}
-
-#loader {
-	position: fixed;
-	left: 0;
-	top: 0;
-	right: 0;
-	bottom: 0;
-	display: flex;
-	justify-content: center;
-	align-items: center;
-	background-color: #000a;
-	z-index: 9999;
-}
-
-.loader-wrapper {
-	padding: 15px;
-	border-radius: 12px;
-	background-color: white;
-}
-
-.loader-img {
-	max-width: 20vw;
-	max-height: 20vh;
-}
@@ -1,4 +0,0 @@
-<svg width="22" height="22" viewBox="0 0 22 22" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path d="M4.51245 10.9993C4.51245 10.7415 4.61483 10.4944 4.79705 10.3122C4.97928 10.1299 5.22644 10.0276 5.48415 10.0276H10.0097V5.50203C10.0097 5.24432 10.112 4.99717 10.2943 4.81494C10.4765 4.63271 10.7237 4.53033 10.9814 4.53033C11.2391 4.53033 11.4862 4.63271 11.6685 4.81494C11.8507 4.99717 11.9531 5.24432 11.9531 5.50203V10.0276H16.4786C16.7363 10.0276 16.9835 10.1299 17.1657 10.3122C17.3479 10.4944 17.4503 10.7415 17.4503 10.9993C17.4503 11.257 17.3479 11.5041 17.1657 11.6863C16.9835 11.8686 16.7363 11.971 16.4786 11.971H11.9531V16.4965C11.9531 16.7542 11.8507 17.0013 11.6685 17.1836C11.4862 17.3658 11.2391 17.4682 10.9814 17.4682C10.7237 17.4682 10.4765 17.3658 10.2943 17.1836C10.112 17.0013 10.0097 16.7542 10.0097 16.4965V11.971H5.48415C5.22644 11.971 4.97928 11.8686 4.79705 11.6863C4.61483 11.5041 4.51245 11.257 4.51245 10.9993Z" fill="#9999AD"/>
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--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
H1K0	b774d2b3c9	style(backend): improve error handling	2025-10-10 01:37:01 +03:00
H1K0	d124229308	fix(backend/infrastructure/persistence/postgres): some fixes on FileRepository methods	2025-10-10 00:31:51 +03:00
H1K0	bf7a11076f	fix(backend/infrastructure/persistence/postgres): add testing connection to db and improve error messages	2025-10-09 21:01:38 +03:00
H1K0	c7176fadf6	fix(backend/domain): fix typo in error code	2025-10-09 01:46:10 +03:00
H1K0	bc4354bf7b	refactor(backend/domain): get rid of pgx types	2025-10-09 01:45:43 +03:00
H1K0	00ab98072b	feat(backend/repositories): add get tags by file method refactor(backend/domain): start switching from pgx types	2025-10-09 01:39:19 +03:00
H1K0	c39d82fafd	refactor(backend): switch to DDD	2025-10-09 00:59:30 +03:00
H1K0	4e0fc431e2	refactor(backend/domain): rename `domain.go` -> `entity.go`	2025-10-08 20:20:51 +03:00
H1K0	7384751d6b	fix(backend/storage/postgres): fix `FileGetAccess` function	2025-07-05 15:38:31 +03:00
H1K0	49952c62ef	refactor(backend): change backend file structure	2025-07-05 14:50:44 +03:00
H1K0	057ba22b18	feat(backend/db): add function to get user's rights to a file	2025-07-04 23:21:53 +03:00
H1K0	35d41a46c0	fix(backend/db): fix error and status handling in some functions	2025-07-04 22:46:00 +03:00
H1K0	dbc34a8e0d	feat(db): add recursive function to add tags to file including autotags	2025-07-04 02:32:47 +03:00
H1K0	912c7b80a3	feat(backend/db): add basic CRUD functions for files	2025-07-04 00:37:06 +03:00
H1K0	900770ff36	docs(erd): add `can_create` column to `system.users`	2025-07-03 20:19:45 +03:00
H1K0	7062cb630e	feat(backend/models): add `CanCreate` attribute to user model	2025-07-03 20:18:47 +03:00
H1K0	436f164ab9	feat(db): add `can_create` column to `system.users`	2025-07-03 20:17:44 +03:00
H1K0	d9ca913620	refactor(backend/models): make file's `Metadata` not nullable	2025-07-03 20:10:42 +03:00
H1K0	153020b9c7	refactor(db): make `metadata` in `data.files` not nullable	2025-07-03 19:33:51 +03:00
H1K0	effcd2c073	feat(db): add `is_deleted` column to `data.files`	2025-07-03 19:00:55 +03:00
H1K0	78885b3656	docs(erd): add `is_deleted` column to `data.files`	2025-07-03 18:57:53 +03:00
H1K0	828d611f4d	fix(backend/db): set status code 200 when no error in `handleDBError`	2025-07-03 18:34:48 +03:00
H1K0	82bd446a85	feat(backend/models): add aggregated fields to full file, tag, pool models	2025-07-03 18:23:46 +03:00
H1K0	24075e5a76	style(backend/models): change JSON names to camelCase	2025-07-03 18:07:33 +03:00
H1K0	27184bf17a	refactor(backend/models): separate core, item and full models	2025-07-03 18:02:46 +03:00
H1K0	ec17dfb0ce	feat(backend/db): add database error handler	2025-07-03 17:31:17 +03:00
H1K0	6e3328ca83	refactor(db): make `metadata` in `data.files` nullable	2025-07-03 16:19:34 +03:00
H1K0	164ea9a6c8	feat(db): add `uuid_extract_timestamp` function	2025-07-03 16:18:44 +03:00
H1K0	761babfa1a	refactor(backend/models): use `pgtype` for nullable fields	2025-07-03 16:16:44 +03:00
H1K0	59eacd6bc5	refactor(backend/db): remove `ctx` argument from `transaction` wrapper	2025-07-03 15:35:56 +03:00
H1K0	5ac528be05	feat(backend/db): add util functions `sortToSQL` and unimplemented `filterToSQL`	2025-07-03 14:55:30 +03:00
H1K0	ad3c77b40e	feat(backend/db): add transaction wrapper	2025-07-03 03:00:03 +03:00
H1K0	e807d61b05	init(backend/db): initialize db handler	2025-07-03 02:53:06 +03:00
H1K0	429213f29c	refactor(backend/models): `objects.go` -> `models.go`	2025-07-03 02:52:59 +03:00
H1K0	ace4fa1c0a	feat(backend/models): add pagination and slice	2025-07-03 02:52:53 +03:00
H1K0	d543101054	init(backend/models): add objects models	2025-07-03 02:52:28 +03:00
H1K0	b1587f05cc	refactor(db): rename schema `access` -> `acl`	2025-07-03 02:26:50 +03:00
H1K0	9230b9a5dc	docs(erd): rename schema `access` -> `acl`	2025-07-03 02:24:40 +03:00
H1K0	be65d0623b	init(backend): initialize backend	2025-07-03 00:10:25 +03:00
H1K0	4221abe905	init(db): add database schema	2025-07-02 23:30:53 +03:00
H1K0	a27ae7d4ab	docs(erd): adjust `sessions` table schema for storing JWT whitelist	2025-07-02 23:25:34 +03:00
H1K0	cc53b862e4	docs(erd): change column names in `access` schema `read` -> `view` `write` -> `edit`	2025-07-02 22:11:25 +03:00
H1K0	49fc1537b7	docs(erd): remove `created_at` columns due to switching to UUID v7	2025-07-02 20:17:47 +03:00
H1K0	1c013183f0	docs(erd): addsurrogate PK to `mime` table and change some ID types to numeric	2025-07-02 20:14:09 +03:00
H1K0	e8084bdeb0	docs(erd): CRLF -> LF	2025-07-02 12:36:06 +03:00
H1K0	6f7f38c9da	docs(erd): add entity relationship diagram (ERD)	2025-07-01 23:58:13 +03:00