feat: add OpenList upload support and upload tasks monitoring page

Backend:
- Add OpenListRecordArtifactUploader implementing AList-compatible API upload
- Add Uploading status to RecordArtifactUploadStatus enum
- Add MarkUploadStarted() to RecordResult entity for upload progress tracking
- Add ListUploadStatus API endpoint with pagination and status filtering
- Add UploadTaskItemDto and UploadTaskListResponse models
- Add upload segment count stats (uploaded/failed/uploading) to session DTO
- Add OpenListUploadSettingsDto and upload target type OpenList

Frontend:
- Add UploadTasksView page with route /upload-tasks
- Add upload status labels and UploadTaskItem types
- Refactor MainLayout navigation and clean up main.css
- Polish DashboardView, MetricCard, StatusBadge, RightDrawer components
- Update SettingsView to support OpenList upload configuration

Build:
- Add frontend/Dockerfile.arm64 for ARM64 frontend image
- Update build-arm64-image.sh script

Other:
- Add segment_completed_openlist.sh trigger script
- Add prototype/ directory with UI mockups
- Add frontend .dockerignore refinements

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

frontend/src/router/index.ts

@@ -7,6 +7,7 @@ const DashboardView = () => import("@/views/DashboardView.vue");
 const LiveRoomsView = () => import("@/views/LiveRoomsView.vue");
 const RecordTasksView = () => import("@/views/RecordTasksView.vue");
 const TranscodeTasksView = () => import("@/views/TranscodeTasksView.vue");
+const UploadTasksView = () => import("@/views/UploadTasksView.vue");
 const RecordTaskDetailView = () => import("@/views/RecordTaskDetailView.vue");
 const RecordSessionDetailView = () => import("@/views/RecordSessionDetailView.vue");
 const MediaBrowserView = () => import("@/views/MediaBrowserView.vue");
@@ -48,6 +49,11 @@ const router = createRouter({
           name: "transcode-tasks",
           component: TranscodeTasksView
         },
+        {
+          path: "upload-tasks",
+          name: "upload-tasks",
+          component: UploadTasksView
+        },
         {
           path: "media-browser",
           name: "media-browser",