refactor: 统一HTTP方法处理为ANY并集中响应

- 将所有HTTP方法处理统一为ANY方法，直接在单个处理器中处理所有请求并返回响应或404错误。

src/routes/api/rpc.$.ts

@@ -43,28 +43,17 @@ const handler = new RPCHandler(router, {
   ],
 })
 
-async function handle({ request }: { request: Request }) {
-  const { matched, response } = await handler.handle(request, {
-    prefix: '/api/rpc',
-    context: {},
-  })
-
-  if (matched) {
-    return response
-  }
-
-  return new Response('Not Found', { status: 404 })
-}
-
 export const Route = createFileRoute('/api/rpc/$')({
   server: {
     handlers: {
-      HEAD: handle,
+      ANY: async ({ request }) => {
-      GET: handle,
+        const { response } = await handler.handle(request, {
-      POST: handle,
+          prefix: '/api/rpc',
-      PUT: handle,
+          context: {},
-      PATCH: handle,
+        })
-      DELETE: handle,
+
+        return response ?? new Response('Not Found', { status: 404 })
+      },
     },
   },
 })