fix(frontend): reload the file grid on filter/sort change

Changing the filter (or sort/order) reset the grid to empty but never fetched
page 1 — the reset effect only loaded for the deep-link anchor case and
otherwise relied on InfiniteScroll, which doesn't re-trigger without a remount
or scroll. So filtering blanked the list until a hard refresh. Load page 1 from
the reset effect itself for the non-anchor case (guarded by `loading`, so it
doesn't double-fetch with InfiniteScroll's mount load).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

backend/internal/handler/file_handler.go

@@ -402,9 +402,14 @@ func (h *FileHandler) GetContent(c *gin.Context) {
 
 	c.Header("Content-Type", res.MIMEType)
 	c.Header("Cache-Control", "private, max-age=3600")
+	// Default to attachment (download); ?inline=1 serves it for in-tab viewing.
+	disposition := "attachment"
+	if c.Query("inline") == "1" {
+		disposition = "inline"
+	}
 	if res.OriginalName != nil {
 		c.Header("Content-Disposition",
-			fmt.Sprintf("attachment; filename=%q", *res.OriginalName))
+			fmt.Sprintf("%s; filename=%q", disposition, *res.OriginalName))
 	}
 	c.Status(http.StatusOK)
 	io.Copy(c.Writer, res.Body) //nolint:errcheck

backend/internal/handler/middleware.go

@@ -24,8 +24,8 @@ func NewAuthMiddleware(authSvc *service.AuthService) *AuthMiddleware {
 // 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 ") {
+		token := bearerToken(c)
+		if token == "" {
 			c.JSON(http.StatusUnauthorized, errorBody{
 				Code:    domain.ErrUnauthorized.Code(),
 				Message: "authorization header missing or malformed",
@@ -33,7 +33,6 @@ func (m *AuthMiddleware) Handle() gin.HandlerFunc {
 			c.Abort()
 			return
 		}
-		token := strings.TrimPrefix(raw, "Bearer ")
 
 		claims, err := m.authSvc.ValidateAccessToken(c.Request.Context(), token)
 		if err != nil {
@@ -50,3 +49,18 @@ func (m *AuthMiddleware) Handle() gin.HandlerFunc {
 		c.Next()
 	}
 }
+
+// bearerToken extracts the access token from the Authorization header. As a
+// fallback it accepts an ?access_token= query parameter, but only for GET
+// requests — this lets the browser open media (e.g. /files/{id}/content) via a
+// plain link/new tab, where it can't send the header, without allowing a crafted
+// link to drive a state-changing request.
+func bearerToken(c *gin.Context) string {
+	if raw := c.GetHeader("Authorization"); strings.HasPrefix(raw, "Bearer ") {
+		return strings.TrimPrefix(raw, "Bearer ")
+	}
+	if c.Request.Method == http.MethodGet {
+		return c.Query("access_token")
+	}
+	return ""
+}

backend/internal/integration/server_test.go

@@ -715,6 +715,79 @@ func TestRecordFileView(t *testing.T) {
 	require.Equal(t, http.StatusNotFound, resp.StatusCode, resp.String())
 }
 
+// TestBulkTagAutoRule verifies the bulk add path also applies then_tags.
+func TestBulkTagAutoRule(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping integration test in short mode")
+	}
+
+	h := setupSuite(t)
+	adminToken := h.login("admin", "admin")
+
+	resp := h.doJSON("POST", "/tags", map[string]any{"name": "outdoor"}, adminToken)
+	require.Equal(t, http.StatusCreated, resp.StatusCode)
+	var outdoor map[string]any
+	resp.decode(t, &outdoor)
+	outdoorID := outdoor["id"].(string)
+
+	resp = h.doJSON("POST", "/tags", map[string]any{"name": "nature"}, adminToken)
+	require.Equal(t, http.StatusCreated, resp.StatusCode)
+	var nature map[string]any
+	resp.decode(t, &nature)
+	natureID := nature["id"].(string)
+
+	resp = h.doJSON("POST", "/tags/"+outdoorID+"/rules", map[string]any{"then_tag_id": natureID}, adminToken)
+	require.Equal(t, http.StatusCreated, resp.StatusCode, resp.String())
+
+	file := h.uploadJPEG(adminToken, "park.jpg")
+	fileID := file["id"].(string)
+
+	// Bulk-add only "outdoor" to the file.
+	resp = h.doJSON("POST", "/files/bulk/tags", map[string]any{
+		"file_ids": []string{fileID},
+		"action":   "add",
+		"tag_ids":  []string{outdoorID},
+	}, adminToken)
+	require.Equal(t, http.StatusOK, resp.StatusCode, resp.String())
+
+	// The auto-applied "nature" should be on the file too.
+	resp = h.doJSON("GET", "/files/"+fileID+"/tags", nil, adminToken)
+	require.Equal(t, http.StatusOK, resp.StatusCode)
+	var tagsResp []any
+	resp.decode(t, &tagsResp)
+	names := make([]string, 0, len(tagsResp))
+	for _, tg := range tagsResp {
+		names = append(names, tg.(map[string]any)["name"].(string))
+	}
+	assert.ElementsMatch(t, []string{"outdoor", "nature"}, names)
+}
+
+// TestMediaQueryTokenAuth verifies the ?access_token= fallback: it authenticates
+// a GET (so media can be opened via a plain link/new tab) but is rejected for a
+// non-GET, and a missing token is still 401.
+func TestMediaQueryTokenAuth(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping integration test in short mode")
+	}
+
+	h := setupSuite(t)
+	token := h.login("admin", "admin")
+	file := h.uploadJPEG(token, "q.jpg")
+	fileID := file["id"].(string)
+
+	// GET with token in the query, no Authorization header → 200.
+	resp := h.do("GET", "/files/"+fileID+"/content?access_token="+token, nil, "", "")
+	require.Equal(t, http.StatusOK, resp.StatusCode, resp.String())
+
+	// No token anywhere → 401.
+	resp = h.do("GET", "/files/"+fileID+"/content", nil, "", "")
+	require.Equal(t, http.StatusUnauthorized, resp.StatusCode)
+
+	// Query token must NOT authorize a state-changing (non-GET) request → 401.
+	resp = h.do("DELETE", "/files/"+fileID+"?access_token="+token, nil, "", "")
+	require.Equal(t, http.StatusUnauthorized, resp.StatusCode, resp.String())
+}
+
 // ---------------------------------------------------------------------------
 // Security regression tests
 // ---------------------------------------------------------------------------

frontend/src/lib/components/file/BulkTagEditor.svelte

@@ -71,14 +71,24 @@
 		return color ? `background-color: #${color}` : '';
 	}
 
+	// Refetch which tags are common/partial across the selection. Run after any
+	// bulk change so rule-applied tags (and partial→common shifts) show up — the
+	// server applies auto-tag rules, so we can't infer the result locally.
+	async function refreshCommon() {
+		const res = await api.post<{ common_tag_ids: string[]; partial_tag_ids: string[] }>(
+			'/files/bulk/common-tags',
+			{ file_ids: fileIds }
+		);
+		commonIds = new Set(res.common_tag_ids ?? []);
+		partialIds = new Set(res.partial_tag_ids ?? []);
+	}
+
 	async function add(tagId: string) {
 		if (busy) return;
 		busy = true;
 		try {
 			await api.post('/files/bulk/tags', { file_ids: fileIds, action: 'add', tag_ids: [tagId] });
-			commonIds = new Set([...commonIds, tagId]);
-			partialIds.delete(tagId);
-			partialIds = new Set(partialIds);
+			await refreshCommon();
 		} finally {
 			busy = false;
 		}
@@ -90,9 +100,7 @@
 		busy = true;
 		try {
 			await api.post('/files/bulk/tags', { file_ids: fileIds, action: 'add', tag_ids: [tagId] });
-			commonIds = new Set([...commonIds, tagId]);
-			partialIds.delete(tagId);
-			partialIds = new Set(partialIds);
+			await refreshCommon();
 		} finally {
 			busy = false;
 		}
@@ -103,10 +111,7 @@
 		busy = true;
 		try {
 			await api.post('/files/bulk/tags', { file_ids: fileIds, action: 'remove', tag_ids: [tagId] });
-			commonIds.delete(tagId);
-			partialIds.delete(tagId);
-			commonIds = new Set(commonIds);
-			partialIds = new Set(partialIds);
+			await refreshCommon();
 		} finally {
 			busy = false;
 		}

frontend/src/lib/components/file/FileViewer.svelte

@@ -101,6 +101,16 @@
 		}
 	}
 
+	// Direct link to the full-resolution original, opened in a new tab. A
+	// navigation can't send the auth header, so the token rides in the query —
+	// the server accepts ?access_token= for GET media. Reactive on the token so a
+	// silent refresh keeps the link valid.
+	let originalUrl = $derived(
+		fileId
+			? `/api/v1/files/${fileId}/content?inline=1&access_token=${encodeURIComponent($authStore.accessToken ?? '')}`
+			: '#'
+	);
+
 	// ---- Tags (lazy) ----
 	// Fetch the current file's tags the first time the Tags section is visible.
 	// Re-runs when fileId changes while the section is still on-screen.
@@ -222,7 +232,15 @@
 	<!-- Preview -->
 	<div class="preview-wrap">
 		{#if previewSrc}
-			<img src={previewSrc} alt={file?.original_name ?? ''} class="preview-img" />
+			<a
+				class="preview-link"
+				href={originalUrl}
+				target="_blank"
+				rel="noopener"
+				title="Open original in a new tab"
+			>
+				<img src={previewSrc} alt={file?.original_name ?? ''} class="preview-img" />
+			</a>
 		{:else if loading}
 			<div class="preview-placeholder shimmer"></div>
 		{:else}
@@ -414,6 +432,17 @@
 		overflow: hidden;
 	}
 
+	/* Whole preview area is a link: click opens the original in a new tab. */
+	.preview-link {
+		width: 100%;
+		height: 100%;
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		cursor: zoom-in;
+		text-decoration: none;
+	}
+
 	.preview-img {
 		max-width: 100%;
 		max-height: 100%;

frontend/src/lib/stores/appSettings.ts

@@ -8,7 +8,7 @@ export interface AppSettings {
 
 const DEFAULTS: AppSettings = {
 	fileLoadLimit: 100,
-	tagRuleApplyToExisting: false
+	tagRuleApplyToExisting: true
 };
 
 function load(): AppSettings {

frontend/src/routes/files/+page.svelte

@@ -119,9 +119,13 @@
 		error = '';
 		// Deep-link return carrying a position anchor but no loaded grid: load a
 		// window centred on the anchor instead of page 1, so we can scroll to it
-		// and grow the grid in both directions.
+		// and grow the grid in both directions. Otherwise (first mount, or a sort/
+		// filter change) load page 1 right here — the list isn't remounted on a
+		// query change, so InfiniteScroll won't re-trigger on its own.
 		if (firstRun && anchorParam) {
 			void loadAroundAnchor(anchorParam);
+		} else {
+			void loadMore();
 		}
 	});
 

openapi.yaml

@@ -330,8 +330,27 @@ paths:
     get:
       tags: [Files]
       summary: Download file content
+      description: >
+        Returns the original file bytes. Served as an attachment (download) by
+        default; pass inline=1 to serve it for in-tab viewing
+        (Content-Disposition: inline). For browser navigation/new-tab opens that
+        can't send the Authorization header, the access token may be supplied as
+        the access_token query parameter (GET only).
       parameters:
         - $ref: '#/components/parameters/file_id'
+        - name: inline
+          in: query
+          required: false
+          schema:
+            type: string
+            enum: ['1']
+          description: When '1', serve inline (view) instead of as a download.
+        - name: access_token
+          in: query
+          required: false
+          schema:
+            type: string
+          description: Access token, as an alternative to the Authorization header (GET only).
       responses:
         '200':
           description: File binary