feat(caldav): implement CalDAV support with token management and calendar operations

server/index.js

@@ -14,6 +14,7 @@ import adminRoutes from './routes/admin.js';
 import brandingRoutes from './routes/branding.js';
 import federationRoutes, { wellKnownHandler } from './routes/federation.js';
 import calendarRoutes from './routes/calendar.js';
+import caldavRoutes from './routes/caldav.js';
 import notificationRoutes from './routes/notifications.js';
 import { startFederationSync } from './jobs/federationSync.js';
 
@@ -57,6 +58,8 @@ async function start() {
   app.use('/api/federation', federationRoutes);
   app.use('/api/calendar', calendarRoutes);
   app.use('/api/notifications', notificationRoutes);
+  // CalDAV — mounted outside /api so calendar clients use a clean path
+  app.use('/caldav', caldavRoutes);
   // Mount calendar federation receive also under /api/federation for remote instances
   app.use('/api/federation', calendarRoutes);
   app.get('/.well-known/redlight', wellKnownHandler);