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/mod/cfh/page.tsx

@@ -14,6 +14,7 @@ import { type CfhRow, CfhTable } from "@/app/admin/moderation/cfh/cfh-table";
 import { requireModPermission } from "@/lib/admin/guard";
 import { calcPagination, parseListParams } from "@/lib/admin-helpers";
 import { db, SupportTickets, User } from "@/lib/db";
+import { formatDate } from "@/lib/format-date";
 import { PERMS } from "@/lib/permissions";
 import { logServerError } from "@/lib/server-log";
 
@@ -143,10 +144,7 @@ export default async function ModCfhListPage({
 		issue: ticket.issue,
 		roomId: ticket.roomId,
 		when: ticket.timestamp
-			? new Date(ticket.timestamp * 1000)
-					.toISOString()
-					.slice(0, 16)
-					.replace("T", " ")
+			? formatDate(new Date(ticket.timestamp * 1000))
 			: "—",
 		sender: userMap.get(ticket.senderId) ?? "—",
 		senderId: ticket.senderId,

src/app/mod/team/page.tsx

@@ -12,6 +12,7 @@ import {
 	User,
 	WebsiteTicket,
 } from "@/lib/db";
+import { formatDate } from "@/lib/format-date";
 import { PERMS } from "@/lib/permissions";
 
 export default async function ModTeamLitePage() {
@@ -157,7 +158,7 @@ export default async function ModTeamLitePage() {
 							{member.online === "1"
 								? "Online"
 								: member.lastOnline
-									? new Date(member.lastOnline * 1000).toLocaleDateString()
+									? formatDate(new Date(member.lastOnline * 1000), "date")
 									: "—"}
 						</span>
 					</Link>