feat(admin): server-safe StatusCard and Import hub polish

Split OnlineUsersWidget from StatusCard, decouple ad delete button, sync badge import to ExternalTexts+WebsiteBadges, add Import section hub with cancelable SSE jobs and upload SQL option.

Co-authored-by: Cursor <[email protected]>

src/app/admin/page.tsx

@@ -2,7 +2,7 @@ import { count, desc, eq, gt, inArray, or } from "drizzle-orm";
 import {
 	Activity,
 	ArrowRight,
-	Ban,
+	Ban as BanIcon,
 	Database,
 	Newspaper,
 	Users,
@@ -11,13 +11,7 @@ import Link from "next/link";
 import { getTranslations } from "next-intl/server";
 import { StatusCard } from "@/components/admin/dashboard";
 import { unixNow } from "@/lib/bans";
-import {
-	Ban as BanTable,
-	db,
-	StaffActivities,
-	User,
-	WebsiteArticles,
-} from "@/lib/db";
+import { Ban, db, StaffActivities, User, WebsiteArticles } from "@/lib/db";
 import { formatDate } from "@/lib/format-date";
 
 type RankCount = { rank: number; count: number };
@@ -36,8 +30,8 @@ export default async function AdminDashboard() {
 			db.select({ total: count() }).from(WebsiteArticles),
 			db
 				.select({ total: count() })
-				.from(BanTable)
-				.where(or(eq(BanTable.banExpire, 0), gt(BanTable.banExpire, now))),
+				.from(Ban)
+				.where(or(eq(Ban.banExpire, 0), gt(Ban.banExpire, now))),
 		]);
 		users = usersRow[0]?.total ?? 0;
 		online = onlineRow[0]?.total ?? 0;
@@ -119,7 +113,7 @@ export default async function AdminDashboard() {
 					label={t("activeBans")}
 					value={dbOk ? bans : "—"}
 					state={bans > 0 ? "warn" : "neutral"}
-					icon={<Ban size={18} />}
+					icon={<BanIcon size={18} />}
 				/>
 				<StatusCard
 					label={t("database")}