Media Assets Management Sidebar Tab Implementation (#6112)

## 📋 Overview
Implemented a new Media Assets sidebar tab in ComfyUI for managing
user-uploaded input files and generated output files. This feature
supports both local and cloud environments and is currently enabled only
in development mode.

## 🎯 Key Features

### 1. Media Assets Sidebar Tab
- **Imported** / **Generated** files separated by tabs
- Visual display with file preview cards
- Gallery view support (navigable with arrow keys)

### 2. Environment-Specific Implementation
- **`useInternalMediaAssets`**: For local environment
  - Fetches file list via `/files` API
  - Retrieves generation task execution time via `/history` API
  - Processes history data using the same logic as QueueSidebarTab
- **`useCloudMediaAssets`**: For cloud environment
  - File retrieval through assetService
  - History data processing using TaskItemImpl
- Auto-truncation of long filenames over 20 characters (e.g.,
`very_long_filename_here.png` → `very_long_...here.png`)

### 3. Execution Time Display
- Shows task execution time on generated image cards (e.g., "2.3s")
- Calculated from History API's `execution_start` and
`execution_success` messages
- Displayed at MediaAssetCard's duration chip location

### 4. Gallery Feature
- Full-screen gallery mode on image click
- Navigate between images with keyboard arrows
- Exit gallery with ESC key
- Reuses ResultGallery component from QueueSidebarTab

### 5. Development Mode Only
- Excluded from production builds using `import.meta.env.DEV` condition
- Feature in development, scheduled for official release after
stabilization

## 🛠️ Technical Changes

### New Files Added
- `src/components/sidebar/tabs/AssetsSidebarTab.vue` - Main sidebar tab
component
- `src/composables/sidebarTabs/useAssetsSidebarTab.ts` - Sidebar tab
definition
- `src/composables/useInternalMediaAssets.ts` - Local environment
implementation
- `src/composables/useCloudMediaAssets.ts` - Cloud environment
implementation
- `packages/design-system/src/icons/image-ai-edit.svg` - Icon addition

### Modified Files
- `src/stores/workspace/sidebarTabStore.ts` - Added dev mode only tab
display logic
- `src/platform/assets/components/MediaAssetCard.vue` - Added execution
time display, zoom event
- `src/platform/assets/components/MediaImageTop.vue` - Added image
dimension detection
- `packages/shared-frontend-utils/src/formatUtil.ts` - Added media type
determination utility functions
- `src/locales/en/main.json` - Added translation keys


[media_asset_OSS_cloud.webm](https://github.com/user-attachments/assets/a6ee3b49-19ed-4735-baad-c2ac2da868ef)

---------

Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: github-actions <github-actions@github.com>

packages/design-system/src/icons/image-ai-edit.svg

@@ -0,0 +1,5 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M14 9.99996L11.9427 7.94263C11.6926 7.69267 11.3536 7.55225 11 7.55225C10.6464 7.55225 10.3074 7.69267 10.0573 7.94263L9 9M8 14H12.6667C13.403 14 14 13.403 14 12.6667V3.33333C14 2.59695 13.403 2 12.6667 2H3.33333C2.59695 2 2 2.59695 2 3.33333V8" stroke="currentColor" stroke-width="1.3" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M5.51377 12.671L4.77612 14.3921C4.67222 14.6346 4.32853 14.6346 4.22463 14.3921L3.48699 12.671C3.45664 12.6002 3.40022 12.5437 3.32942 12.5134L1.60825 11.7757C1.36581 11.6718 1.36581 11.3282 1.60825 11.2243L3.32942 10.4866C3.40022 10.4563 3.45664 10.3998 3.48699 10.329L4.22463 8.60787C4.32853 8.36544 4.67222 8.36544 4.77612 8.60787L5.51377 10.329C5.54411 10.3998 5.60053 10.4563 5.67134 10.4866L7.39251 11.2243C7.63494 11.3282 7.63494 11.6718 7.39251 11.7757L5.67134 12.5134C5.60053 12.5437 5.54411 12.6002 5.51377 12.671Z" stroke="currentColor" stroke-width="1.3" stroke-linecap="round"/>
+<path d="M5 5H5.0001" stroke="currentColor" stroke-width="2" stroke-linecap="round"/>
+</svg>

packages/shared-frontend-utils/src/formatUtil.ts

@@ -474,3 +474,68 @@ export function formatDuration(milliseconds: number): string {
 
   return parts.join(' ')
 }
+
+const IMAGE_EXTENSIONS = ['png', 'jpg', 'jpeg', 'gif', 'webp', 'bmp'] as const
+const VIDEO_EXTENSIONS = ['mp4', 'webm', 'mov', 'avi'] as const
+const AUDIO_EXTENSIONS = ['mp3', 'wav', 'ogg', 'flac'] as const
+const THREE_D_EXTENSIONS = ['obj', 'fbx', 'gltf', 'glb'] as const
+
+const MEDIA_TYPES = ['image', 'video', 'audio', '3D'] as const
+type MediaType = (typeof MEDIA_TYPES)[number]
+
+// Type guard helper for checking array membership
+type ImageExtension = (typeof IMAGE_EXTENSIONS)[number]
+type VideoExtension = (typeof VIDEO_EXTENSIONS)[number]
+type AudioExtension = (typeof AUDIO_EXTENSIONS)[number]
+type ThreeDExtension = (typeof THREE_D_EXTENSIONS)[number]
+
+/**
+ * Truncates a filename while preserving the extension
+ * @param filename The filename to truncate
+ * @param maxLength Maximum length for the filename without extension
+ * @returns Truncated filename with extension preserved
+ */
+export function truncateFilename(
+  filename: string,
+  maxLength: number = 20
+): string {
+  if (!filename || filename.length <= maxLength) {
+    return filename
+  }
+
+  const lastDotIndex = filename.lastIndexOf('.')
+  const nameWithoutExt =
+    lastDotIndex > -1 ? filename.substring(0, lastDotIndex) : filename
+  const extension = lastDotIndex > -1 ? filename.substring(lastDotIndex) : ''
+
+  // If the name without extension is short enough, return as is
+  if (nameWithoutExt.length <= maxLength) {
+    return filename
+  }
+
+  // Calculate how to split the truncation
+  const halfLength = Math.floor((maxLength - 3) / 2) // -3 for '...'
+  const start = nameWithoutExt.substring(0, halfLength)
+  const end = nameWithoutExt.substring(nameWithoutExt.length - halfLength)
+
+  return `${start}...${end}${extension}`
+}
+
+/**
+ * Determines the media type from a filename's extension (singular form)
+ * @param filename The filename to analyze
+ * @returns The media type: 'image', 'video', 'audio', or '3D'
+ */
+export function getMediaTypeFromFilename(filename: string): MediaType {
+  if (!filename) return 'image'
+  const ext = filename.split('.').pop()?.toLowerCase()
+  if (!ext) return 'image'
+
+  // Type-safe array includes check using type assertion
+  if (IMAGE_EXTENSIONS.includes(ext as ImageExtension)) return 'image'
+  if (VIDEO_EXTENSIONS.includes(ext as VideoExtension)) return 'video'
+  if (AUDIO_EXTENSIONS.includes(ext as AudioExtension)) return 'audio'
+  if (THREE_D_EXTENSIONS.includes(ext as ThreeDExtension)) return '3D'
+
+  return 'image'
+}