Implement chat server auth, models, handlers, and docs context

lib/server.dart

@@ -1,5 +1,3 @@
-import 'package:chat_server/models.dart';
-import 'package:chat_server/objectbox.g.dart';
 import 'package:hotreloader/hotreloader.dart';
 import 'package:relic/relic.dart';
 
@@ -9,13 +7,7 @@ import 'src/handlers/auth_handlers.dart';
 import 'src/handlers/channel_handlers.dart';
 import 'src/handlers/message_handlers.dart';
 import 'src/handlers/public_handlers.dart';
-import 'src/utils/extensions.dart';
-
-// Global ObjectBox store and boxes
-late final Store store;
-late final Box<User> userBox;
-late final Box<Channel> channelBox;
-late final Box<Message> messageBox;
+import 'src/state/app_state.dart';
 
 RelicApp? _currentApp;
 
@@ -24,34 +16,34 @@ Future<void> startServer() async {
 
   _currentApp = RelicApp()
     // ============ PUBLIC ENDPOINTS (no auth) ============
-    
+
     // Auth
     ..post('/auth/register', registerHandler)
     ..post('/auth/login', loginHandler)
     ..post('/auth/join', joinServerHandler)
-    
+
     // Public identity verification (for cross-server)
-    ..get('/.well-known/users/<username>', publicUserHandler)
-    ..get('/.well-known/verify/<userId>', publicVerifyHandler)
+    ..get('/.well-known/users/:username', publicUserHandler)
+    ..get('/.well-known/verify/:userId', publicVerifyHandler)
     ..get('/.well-known/server', publicServerInfoHandler)
-    
+
     // ============ PROTECTED ENDPOINTS (requires auth) ============
     ..use('/api', jwtMiddleware)
-    
+
     // Current user
     ..get('/api/me', getMeHandler)
-    
+
     // Channels
     ..get('/api/channels', getChannelsHandler)
     ..post('/api/channels', createChannelHandler)
-    ..get('/api/channels/<channelId>', getChannelHandler)
-    
+    ..get('/api/channels/:channelId', getChannelHandler)
+
     // Messages
     ..get('/api/messages', getMessagesHandler)
     ..post('/api/messages', sendMessageHandler)
-    ..put('/api/messages/<messageId>', editMessageHandler)
-    ..delete('/api/messages/<messageId>', deleteMessageHandler)
-    
+    ..put('/api/messages/:messageId', editMessageHandler)
+    ..delete('/api/messages/:messageId', deleteMessageHandler)
+
     // ============ LOGGING & FALLBACK ============
     ..use('/', logRequests())
     ..fallback = respondWith((_) => Response.notFound());
@@ -68,11 +60,7 @@ Future<void> startServer() async {
 }
 
 void main() async {
-  // Initialize ObjectBox
-  store = openStore();
-  userBox = store.box<User>();
-  channelBox = store.box<Channel>();
-  messageBox = store.box<Message>();
+  initializeStore();
 
   // Enable hot reload in development
   await HotReloader.create(