Add public REST API, anti-abuse protections, radio/GitHub cron jobs

Phase A — Public REST API (was the biggest gap). 20 JSON endpoints under
/api mirroring AtomCMS: users/[username], online(+/count), me, articles
(+/[slug]), photos, home, staff, teams, leaderboard, shop(+/categories),
values(+/categories), settings, radio/{config,now-playing,listeners,
shouts}. Shared src/lib/api.ts (apiJson — BigInt-safe + CORS, pagination).
Read-only, fail-soft, and field-safe (never exposes password/auth_ticket/
2FA secrets/mail).

Phase B — Anti-abuse on registration: CAPTCHA (Cloudflare Turnstile /
Google reCAPTCHA, settings-driven, widget rendered on the register page),
VPN/proxy detection (proxycheck.io / IPQualityScore via /admin/vpn
settings), and max-accounts-per-IP. All fail-open when unconfigured.
src/lib/services/{captcha,ip-lookup}.ts.

Phase C — jobs-worker cron suite: radio-record-songs (30s, logs track
changes to radio_song_plays), radio-auto-dj (rotates radio_auto_dj_playlist
when no live DJ), github-update-check (hourly, sets update_available).
Shared src/lib/services/radio.ts (now-playing/listeners parsing).

Verified live (prod, amx_test): /api/* return real JSON (leaderboard 6
users, settings carry no secrets, user endpoint hides password). tsc 0,
vitest 49/49, next build 0 (20 new API routes).

src/app/api/staff/route.ts

@@ -0,0 +1,25 @@
+import { apiJson } from "@/lib/api";
+import { prisma } from "@/lib/prisma";
+import { siteSettings } from "@/lib/services/site-settings";
+
+// Public REST API — staff list. Mirrors src/app/staff/page.tsx: users whose
+// rank is >= min_staff_rank (default 7). Only safe fields are exposed.
+export const dynamic = "force-dynamic";
+
+export async function GET(_req: Request) {
+  try {
+    const minStaffRank = Number(await siteSettings.get("min_staff_rank", "7")) || 7;
+
+    const staff = await prisma.user.findMany({
+      where: { rank: { gte: minStaffRank } },
+      select: { username: true, look: true, rank: true, motto: true },
+      orderBy: [{ rank: "desc" }, { username: "asc" }],
+      take: 100,
+    });
+
+    return apiJson({ data: staff }, { status: 200 });
+  } catch {
+    // Never 500 — serve an empty payload if the DB is unreachable.
+    return apiJson({ data: [] }, { status: 200 });
+  }
+}