feat(websocket): Add TypedRouter WebSocket integration, connection registry, peer tagging and broadcast APIs

ts/core/smartserve.errors.ts

@@ -127,3 +127,13 @@ export class ServerNotRunningError extends Error {
     this.name = 'ServerNotRunningError';
   }
 }
+
+/**
+ * Error thrown when WebSocket configuration is invalid
+ */
+export class WebSocketConfigError extends Error {
+  constructor(message: string) {
+    super(message);
+    this.name = 'WebSocketConfigError';
+  }
+}