refactor(cms): deduplicate shared admin components and fix studio batch completion

- fix(studio): stop markBatchDone infinite recursion so batches complete
- refactor(api): merge api-response into api and drop the duplicate module
- refactor(media): extract shared media loader and URL validator
- refactor(ui): extract shared LoadingSpinner for site and admin groups
- refactor(dates): consolidate raw date formatting into formatDate util
- refactor(logs): share a single generic log-list loader across tables
- refactor(theme): merge both ColorField components and reuse contrast helpers
- refactor(import): extract shared ImportErrorBanner and SearchInput
- chore(): remove dead theme-editor-tabs after inlining tab components

src/app/admin/devops/page.tsx

@@ -7,6 +7,7 @@ import { Badge } from "@/components/ui/badge";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import { fetchOpsHealth } from "@/lib/admin/ops-health";
 import { db, EmulatorErrors, EmulatorSettings } from "@/lib/db";
+import { formatDate } from "@/lib/format-date";
 import { canAccess, getAdminContext, PERMS } from "@/lib/permissions";
 import { HealthCheckClient } from "./health-check-client";
 
@@ -168,7 +169,7 @@ export default async function DevOpsPage() {
 											#{error.id}
 										</span>
 										<span className="text-xs text-muted-foreground">
-											{new Date(error.timestamp * 1000).toLocaleString()}
+											{formatDate(new Date(error.timestamp * 1000))}
 										</span>
 									</div>
 									<pre className="text-xs whitespace-pre-wrap break-all font-mono text-destructive">