feat(logging): implement centralized logging system and replace console errors with structured logs

feat(federation): add room sync and deletion notification endpoints for federated instances

fix(federation): handle room deletion and update settings during sync process

feat(federation): enhance FederatedRoomCard and FederatedRoomDetail components to display deleted rooms

i18n: add translations for room deletion messages in English and German

server/index.js

@@ -3,6 +3,7 @@ import express from 'express';
 import cors from 'cors';
 import path from 'path';
 import { fileURLToPath } from 'url';
+import { log } from './config/logger.js';
 import requestResponseLogger from './middleware/logging.js';
 import { initDatabase } from './config/database.js';
 import { initMailer } from './config/mailer.js';
@@ -12,6 +13,7 @@ import recordingRoutes from './routes/recordings.js';
 import adminRoutes from './routes/admin.js';
 import brandingRoutes from './routes/branding.js';
 import federationRoutes, { wellKnownHandler } from './routes/federation.js';
+import { startFederationSync } from './jobs/federationSync.js';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
@@ -62,11 +64,14 @@ async function start() {
   }
 
   app.listen(PORT, () => {
-    console.log(`🔴 Redlight server running on http://localhost:${PORT}`);
+    log.server.info(`Redlight server running on http://localhost:${PORT}`);
   });
+
+  // Start periodic federation sync job (checks remote room settings every 60s)
+  startFederationSync();
 }
 
 start().catch(err => {
-  console.error('❌ Failed to start server:', err);
+  log.server.error(`Failed to start server: ${err.message}`);
   process.exit(1);
 });