Replace IW4MAdmin with direct RCON for player counts

IW4M kept hitting a network wall (container -> host LAN IP -> IW4M
loopback bind) that we couldn't cleanly punch through, and the two-minute
!rt token added enough operational friction that the pause-all-deployments
gate never got a fair test. RCON gives us the same fact — how many
players are on a server right now — direct from each game server over
UDP, with no session, no token, no proxy.

- Add integrations/rcon.ts: dgram UDP client. rconGetPlayerCount() and
  rconGetStatus() parse both `status` (print + scoreboard) and
  `statusResponse` (info line + rows) dialects. Timeout via
  RCON_TIMEOUT_MS.
- Add komodoResolveGamePort() + extractUdpPort(). Reads Komodo's read
  API for a server, walks both docker-compose-style port objects and
  docker-run-style "host:container/udp" strings, caches into
  servers.game_port on first success.
- Replace pipelineReady() guard in sweep with a simple
  integrations-configured check. Same held/failed/manual outcomes,
  but keyed on RCON+Komodo instead of IW4M+auth-state.
- Worker's status refresh fans out per-server over RCON at concurrency=4
  so a 15-server fleet doesn't spike UDP.
- Schema: drop iw4m_match/iw4m_value, add game_port + rcon_host.
- Delete every auth artifact: TokenModal, auth store, auth-state module,
  /api/auth/token, /api/events/auth, iw4m.test.ts. Layout no longer
  mounts the modal, pipeline store no longer tracks a frozen state.
- README + .env.example + docker-compose.yml + komodo/stack.toml swap
  IW4M_* env for RCON_PASSWORD / RCON_HOST / RCON_TIMEOUT_MS. Same
  host.docker.internal:host-gateway extra_hosts entry, repurposed
  for RCON reach.
- Tests: add rcon.test.ts and komodo.test.ts, update sweep.test.ts to
  drop the auth-freeze case. 23/23 passing.

src/routes/api/auth/token/+server.ts

@@ -1,30 +0,0 @@
-import { json } from '@sveltejs/kit';
-import { loginWithToken } from '$lib/server/integrations/iw4m.js';
-import { getAuthState, setAuthState } from '$lib/server/integrations/auth-state.js';
-import { kick } from '$lib/server/pipeline/worker.js';
-
-export async function GET() {
-    return json(getAuthState());
-}
-
-export async function POST({ request }: { request: Request }) {
-    const body = (await request.json().catch(() => ({}))) as { token?: string };
-    const token = (body.token ?? '').trim();
-    if (!/^[a-zA-Z0-9]{4}$/.test(token)) {
-        return json({ ok: false, error: 'token must be exactly 4 alphanumeric characters' }, { status: 400 });
-    }
-    const res = await loginWithToken(token);
-    if (!res.ok) {
-        setAuthState({ kind: 'stale', reason: res.reason === 'rejected' ? 'rejected' : 'unreachable' });
-        return json({ ok: false, error: res.message }, { status: res.reason === 'rejected' ? 401 : 502 });
-    }
-    setAuthState({ kind: 'ready', token, cookie: res.cookie, expiresAt: res.expiresAt });
-    // Fresh cookie → immediately drain any queued restarts.
-    void kick();
-    return json({ ok: true, expiresAt: res.expiresAt });
-}
-
-export async function DELETE() {
-    setAuthState({ kind: 'missing' });
-    return json({ ok: true });
-}