Truth-in-UI cleanup: wire real dashboard data, fix delete/dialog gaps

Phase 1 of frontend_tasks.md - stop showing fabricated/broken UI:

- Dashboard now fetches real stats (projects, tasks, users, pending
  approvals, API keys, developer stats, pending reviews, admin
  activity) instead of hardcoded numbers. Added services/developer.ts
  and services/review.ts wrappers for previously-unused backend
  endpoints.
- Wired ActivityFeed into every project's Overview page in place of
  the "coming soon" placeholder.
- Registered the missing /projects/:id/technical-specs route (view
  and service already existed, just unreachable).
- Fixed AssetDeleteConfirmDialog's raw styled divs to use the shared
  Alert component and wired it into AssetBrowser, matching
  ShotBrowser's impact-summary + type-to-confirm safety pattern
  (asset deletion was previously less safe than shot deletion).
- Fixed a shared bug in both delete dialogs where the impact-summary
  section never rendered (watch on the open prop needed
  { immediate: true }).
- Replaced native confirm()/alert() with styled AlertDialog/Dialog in
  NoteItem, TaskAttachments, and UserMenu's keyboard-shortcuts item.
- Removed dead-end UI: Google OAuth stub buttons, UserMenu items
  pointing at non-existent routes, the /developer/docs dead link, and
  the no-op action button on the API Keys placeholder page.
- Removed leftover debug console logging across 8 files.

Added frontend_report.md (full audit) and frontend_tasks.md (phased
checklist) as the reference for this and future phases.

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

frontend/src/components/asset/AssetBrowser.vue

@@ -161,26 +161,14 @@
       </Dialog>
 
       <!-- Delete Confirmation Dialog -->
-      <AlertDialog v-model:open="showDeleteDialog">
-        <AlertDialogContent>
-          <AlertDialogHeader>
-            <AlertDialogTitle>Delete Asset</AlertDialogTitle>
-            <AlertDialogDescription>
-              Are you sure you want to delete "{{ selectedAsset?.name }}"? This
-              action cannot be undone and will remove all associated tasks.
-            </AlertDialogDescription>
-          </AlertDialogHeader>
-          <AlertDialogFooter>
-            <AlertDialogCancel>Cancel</AlertDialogCancel>
-            <AlertDialogAction
-              @click="handleDeleteAsset"
-              class="bg-destructive text-destructive-foreground hover:bg-destructive/90"
-            >
-              Delete Asset
-            </AlertDialogAction>
-          </AlertDialogFooter>
-        </AlertDialogContent>
-      </AlertDialog>
+      <AssetDeleteConfirmDialog
+        v-if="deletionInfo && assetToDelete"
+        :open="showDeleteDialog"
+        :asset-id="assetToDelete.id"
+        :asset-name="deletionInfo.asset_name"
+        @update:open="showDeleteDialog = $event"
+        @confirm-delete="handleDeleteAsset"
+      />
     </div>
   <!-- Asset Detail Panel (Desktop) with slide animation -->
   <Transition
@@ -251,20 +239,11 @@ import {
   DialogHeader,
   DialogTitle,
 } from "@/components/ui/dialog";
-import {
-  AlertDialog,
-  AlertDialogAction,
-  AlertDialogCancel,
-  AlertDialogContent,
-  AlertDialogDescription,
-  AlertDialogFooter,
-  AlertDialogHeader,
-  AlertDialogTitle,
-} from "@/components/ui/alert-dialog";
 import { Sheet, SheetContent } from "@/components/ui/sheet";
 import AssetCard from "./AssetCard.vue";
 import AssetForm from "./AssetForm.vue";
 import AssetDetailPanel from "./AssetDetailPanel.vue";
+import AssetDeleteConfirmDialog from "./AssetDeleteConfirmDialog.vue";
 import AssetsDataTable from "./AssetsDataTable.vue";
 import AssetTableToolbar from "./AssetTableToolbar.vue";
 import { createAssetColumns, type AssetColumnMeta } from "./columns";
@@ -273,11 +252,13 @@ import { useAuthStore } from "@/stores/auth";
 import { useTaskStatusesStore } from "@/stores/taskStatuses";
 import { useDetailPanel } from "@/composables/useDetailPanel";
 import {
+  assetService,
   AssetCategory,
   TaskStatus,
   type Asset,
   type AssetCreate,
   type AssetUpdate,
+  type AssetDeletionInfo,
 } from "@/services/asset";
 import { useToast } from "@/components/ui/toast/use-toast";
 import type { SortingState, VisibilityState } from '@tanstack/vue-table';
@@ -385,6 +366,9 @@ const showDeleteDialog = ref(false);
 const isCreating = ref(false);
 const isUpdating = ref(false);
 
+const assetToDelete = ref<Asset | null>(null);
+const deletionInfo = ref<AssetDeletionInfo | null>(null);
+
 const taskStatusFilter = ref('')
 
 // Thumbnail display state - with session storage
@@ -563,9 +547,20 @@ const editAsset = (asset: Asset) => {
   showEditDialog.value = true;
 };
 
-const deleteAsset = (asset: Asset) => {
-  selectedAsset.value = asset;
-  showDeleteDialog.value = true;
+const deleteAsset = async (asset: Asset) => {
+  // Don't set selectedAsset here as it opens the detail panel
+  assetToDelete.value = asset;
+
+  try {
+    deletionInfo.value = await assetService.getAssetDeletionInfo(asset.id);
+    showDeleteDialog.value = true;
+  } catch (err) {
+    toast({
+      title: "Failed to get asset information",
+      description: err instanceof Error ? err.message : "An error occurred",
+      variant: "destructive",
+    });
+  }
 };
 
 const viewAssetTasks = (asset: Asset) => {
@@ -619,15 +614,21 @@ const handleUpdateAsset = async (assetData: AssetCreate | AssetUpdate) => {
 };
 
 const handleDeleteAsset = async () => {
-  if (!selectedAsset.value) return;
+  if (!assetToDelete.value) return;
 
   try {
-    await assetsStore.deleteAsset(selectedAsset.value.id);
+    await assetsStore.deleteAsset(assetToDelete.value.id);
+
     showDeleteDialog.value = false;
-    selectedAsset.value = null;
+    assetToDelete.value = null;
+
+    const taskCount = deletionInfo.value?.task_count || 0;
+    deletionInfo.value = null;
     toast({
       title: "Asset deleted",
-      description: "Asset has been deleted successfully.",
+      description: taskCount > 0
+        ? `Asset and ${taskCount} associated task${taskCount === 1 ? '' : 's'} deleted successfully.`
+        : "Asset has been deleted successfully.",
     });
   } catch (err) {
     toast({