Refactor event handling to use async/await across adapters

Updated all network adapters' onEvent methods to be asynchronous and return Promises, ensuring consistent async event emission and handling. Adjusted related methods and event emission logic to properly await asynchronous operations, improving reliability for streaming, plugin, HTTP, and WebSocket event flows. Also improved error handling and messaging in stream and WebSocket actions.

src/onebot/network/adapter.ts

@@ -23,7 +23,7 @@ export abstract class IOB11NetworkAdapter<CT extends NetworkAdapterConfig> {
         this.logger = core.context.logger;
     }
 
-    abstract onEvent<T extends OB11EmitEventContent>(event: T): void;
+    abstract onEvent<T extends OB11EmitEventContent>(event: T): Promise<void>;
 
     abstract open(): void | Promise<void>;