Remove no-op voids and add explicit SW return

Remove a pointless `void options.callbackTimeout;` no-op in napcat-rpc client. In the service worker template, add `/* eslint-disable no-undef */` and an explicit `return undefined;` in the cache cleanup callback to make the return value explicit and satisfy linters. In the OneBot debug UI, call `sendRequest(value)` without the leading `void` so the returned promise is not intentionally ignored.

packages/napcat-rpc/src/client.ts

@@ -31,7 +31,6 @@ export function createDeepProxy<T = unknown> (options: DeepProxyOptions): T {
     refId: rootRefId,
     // callbackTimeout 可供未来扩展使用
   } = options;
-  void options.callbackTimeout;
 
   const callbackRegistry = new SimpleCallbackRegistry();
 

packages/napcat-webui-backend/src/assets/sw_template.js

@@ -1,3 +1,4 @@
+/* eslint-disable no-undef */
 /**
  * NapCat WebUI Service Worker
  *
@@ -157,6 +158,7 @@ self.addEventListener('activate', (event) => {
             console.log('[SW] Deleting old cache:', cacheName);
             return caches.delete(cacheName);
           }
+          return undefined;
         })
       );
       // 立即接管所有客户端

packages/napcat-webui-frontend/src/components/onebot/api/debug.tsx

@@ -169,7 +169,7 @@ const OneBotApiDebug = forwardRef<OneBotApiDebugRef, OneBotApiDebugProps>((props
       setActiveTab('request');
       setRequestBody(value);
       // 直接用 override 发送，避免 setState 异步导致拿到旧值
-      void sendRequest(value);
+      sendRequest(value);
     },
     focusRequestEditor: () => {
       setActiveTab('request');