fix: resolve all 65 pre-existing frontend test failures (318/318 passing)

- Remove duplicate vi.mock(@/api/hooks) in SettingsRoles.test.tsx that overrode forceUpdate logic
- SettingsRoles mock: use vi.hoisted for shared forceUpdateRef between useRoles and useUpdateRole
- SettingsRoles mock: use plain async functions instead of vi.fn().mockImplementation for mutations

frontend/src/i18n/locales/en.json

@@ -575,5 +575,80 @@
       "mail": "Mail",
       "general": "General"
     }
+  },
+  "calendar": {
+    "weekdays": [
+      "Mon",
+      "Tue",
+      "Wed",
+      "Thu",
+      "Fri",
+      "Sat",
+      "Sun"
+    ],
+    "months": [
+      "January",
+      "February",
+      "March",
+      "April",
+      "May",
+      "June",
+      "July",
+      "August",
+      "September",
+      "October",
+      "November",
+      "December"
+    ]
+  },
+  "dms": {
+    "title": "Files",
+    "trash": "Trash",
+    "newFolder": "New Folder",
+    "upload": "Upload",
+    "search": "Search files",
+    "searchPlaceholder": "Search...",
+    "folders": "Folders",
+    "files": "Files",
+    "uploadDropHere": "Drag files here or click to select",
+    "shareWith": "Shares",
+    "addShare": "Add share",
+    "userOrGroup": "User or Group",
+    "userId": "User ID",
+    "groupId": "Group ID",
+    "permissionLevel": "Permission level",
+    "shareLink": "Public link",
+    "password": "Password",
+    "expiryDate": "Expiry date",
+    "createShareLink": "Create link",
+    "loading": "Loading",
+    "shared": "Share created",
+    "linkCopied": "Link copied",
+    "uploadError": "Upload failed"
+  },
+  "permissions": {
+    "user": "User",
+    "group": "Group",
+    "permissionRead": "Read",
+    "permissionWrite": "Write",
+    "filePermissions": "File permissions",
+    "noPermissions": "No permissions",
+    "revoked": "Permission revoked",
+    "linkCreated": "Link created",
+    "linkRevoked": "Link revoked"
+  },
+  "tags": {
+    "bulkAssignTitle": "Assign tags",
+    "selectedEntities": "{{count}} selected entries",
+    "search": "Search tags",
+    "loading": "Loading",
+    "cancel": "Cancel",
+    "bulkAssign": "Assign tags",
+    "assignedTags": "Assigned tags",
+    "noTagsAssigned": "No tags assigned",
+    "availableTags": "Available tags",
+    "addTag": "Add tag",
+    "create": "New tag",
+    "selectTags": "Select {{count}} tags"
   }
-}
+}