fix: reduce canvas request bursts

app/layout.tsx

@@ -14,7 +14,7 @@ export async function generateMetadata(): Promise<Metadata> {
     "updatedAt" in settings && settings.updatedAt
       ? new Date(settings.updatedAt).getTime()
       : Date.now();
-  const faviconUrl = `/api/favicon?v=${updatedAt}-${Date.now()}`;
+  const faviconUrl = `/api/favicon?v=${updatedAt}`;
   const metadataBase = process.env.AUTH_URL
     ? new URL(process.env.AUTH_URL)
     : undefined;

components/canvas/CanvasChatPanel.tsx

@@ -2244,10 +2244,19 @@ export function CanvasChatPanel({
   // 从 API 加载历史消息
   const { data: historyData } = useSWR<{
     messages: ChatMessage[];
-  }>(rawChatId ? `/api/messages?chatId=${rawChatId}` : null, fetcher);
+  }>(rawChatId ? `/api/messages?chatId=${rawChatId}` : null, fetcher, {
+    revalidateOnFocus: false,
+    revalidateOnReconnect: false,
+    dedupingInterval: 10000,
+  });
   const { data: messageVotes } = useSWR<MessageVote[]>(
     voteSWRKey,
-    fetcher
+    fetcher,
+    {
+      revalidateOnFocus: false,
+      revalidateOnReconnect: false,
+      dedupingInterval: 60000,
+    }
   );
   
   // 获取选中的图片节点
@@ -2745,7 +2754,12 @@ export function CanvasChatPanel({
     tags?: CanvasSkillTag[];
   }>(
     "/api/canvas-skill-tags",
-    fetcher
+    fetcher,
+    {
+      revalidateOnFocus: false,
+      revalidateOnReconnect: false,
+      dedupingInterval: 60000,
+    }
   );
   const { data: membershipSummary } = useSWR<{
     isHighVip?: boolean;
@@ -2767,6 +2781,11 @@ export function CanvasChatPanel({
       const response = await fetch(url, { cache: "no-store" });
       if (!response.ok) return null;
       return response.json();
+    },
+    {
+      revalidateOnFocus: false,
+      revalidateOnReconnect: false,
+      dedupingInterval: 60000,
     }
   );
   const { data: agentPresetResponse } = useSWR<{ success?: boolean; data?: AgentPreset }>(

components/favicon-updater.tsx

@@ -6,8 +6,11 @@ export function FaviconUpdater() {
   useEffect(() => {
     let isDisposed = false;
 
-    const timestamp = Date.now();
-    const urlWithCache = `/api/favicon?v=${timestamp}`;
+    const existingIcon =
+      document.querySelector<HTMLLinkElement>('link[rel="icon"]')?.href ||
+      document.querySelector<HTMLLinkElement>('link[rel="shortcut icon"]')?.href ||
+      document.querySelector<HTMLLinkElement>('link[rel="apple-touch-icon"]')?.href;
+    const urlWithCache = existingIcon || "/api/favicon";
 
     Promise.resolve().then(() => {
       if (isDisposed) {