Add CMS features with admin interface and OAuth authentication integration

- Introduced Caddy server for serving frontend and API backend.
- Implemented admin dashboard for creating, editing, and managing events.
- Replaced session-based authentication with token-based OAuth using Gitea.
- Added support for drag-and-drop event reordering in the admin interface.
- Standardized Fastify route validation with JSON schemas.
- Enhanced authentication flow with cookie-based state and secure token storage.
- Reworked backend routes to handle publishing, event management, and content updates.
- Updated `Dockerfile.caddy` and `fly.toml` for deployment configuration.

backend/src/index.ts

@@ -3,7 +3,6 @@ import cors from '@fastify/cors';
 import jwt from '@fastify/jwt';
 import multipart from '@fastify/multipart';
 import cookie from '@fastify/cookie';
-import session from '@fastify/session';
 import { authenticate } from './middleware/auth.middleware.js';
 import { env, validateEnv } from './config/env.js';
 
@@ -44,17 +43,12 @@ fastify.register(cors, {
 
 fastify.register(cookie);
 
-fastify.register(session, {
-  secret: env.SESSION_SECRET,
-  cookie: {
-    secure: env.NODE_ENV === 'production',
-    httpOnly: true,
-    maxAge: 600000, // 10 minutes (only needed for OAuth flow)
-  },
-});
-
 fastify.register(jwt, {
   secret: env.JWT_SECRET,
+  cookie: {
+    cookieName: 'token',
+    signed: false,
+  },
 });
 
 fastify.register(multipart, {