feat: add type, status, and library filters to jobs list

Filter jobs by type, status, or library with dropdowns above the table.
Shows filtered count and a clear button when filters are active.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/backoffice/lib/i18n/en.ts

@@ -282,6 +282,9 @@ const en: Record<TranslationKey, string> = {
   "jobsList.duration": "Duration",
   "jobsList.created": "Created",
   "jobsList.actions": "Actions",
+  "jobsList.allTypes": "All types",
+  "jobsList.allStatuses": "All statuses",
+  "jobsList.allLibraries": "All libraries",
 
   // Job row
   "jobRow.showProgress": "Show progress",