cmd/server/main.go: replace stub router with full wiring —
UserRepo, SessionRepo, AuthService, AuthMiddleware, AuthHandler,
NewRouter; use postgres.NewPool instead of pgxpool.New directly.
migrations/001_init_schemas.sql: wrap uuid_v7 and uuid_extract_timestamp
function bodies with goose StatementBegin/End so semicolons inside
dollar-quoted strings are not treated as statement separators.
migrations/007_seed_data.sql: add seed admin user (admin/admin,
bcrypt cost 10, is_admin=true, can_create=true) for manual testing.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>