fix(chat)：建立连接前进行 token 有效性验证

src/components/chat/GlobalChatbox.tsx

@@ -7,7 +7,9 @@ import React, {
   useState,
 } from "react";
 import { Box, Drawer, alpha, useTheme } from "@mui/material";
+import { useNotification } from "@refinedev/core";
 
+import { getAccessToken } from "@/lib/authToken";
 import type { AgentModel } from "@/lib/chatStream";
 import { useProjectStore } from "@/store/projectStore";
 import { AgentComposer, type AgentComposerHandle } from "./AgentComposer";
@@ -25,6 +27,7 @@ export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
   const [width, setWidth] = useState(520);
   const [isResizing, setIsResizing] = useState(false);
   const [isHistoryOpen, setIsHistoryOpen] = useState(false);
+  const [isCheckingAuth, setIsCheckingAuth] = useState(false);
   const [selectedModel, setSelectedModel] = useState<AgentModel>(
     "deepseek/deepseek-v4-pro",
   );
@@ -33,6 +36,7 @@ export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
   const composerRef = useRef<AgentComposerHandle | null>(null);
   const hasResetForOpenRef = useRef(false);
   const theme = useTheme();
+  const { open: openNotification } = useNotification();
   const currentProjectId = useProjectStore((state) => state.currentProjectId);
 
   const {
@@ -108,10 +112,34 @@ export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
     return () => window.clearTimeout(timer);
   }, [createSession, isHydrating, open, scrollToBottom]);
 
-  const handleSend = useCallback((prompt: string) => {
-    if (isStreaming) return;
-    void sendPrompt(prompt);
-  }, [isStreaming, sendPrompt]);
+  const handleSend = useCallback(async (prompt: string) => {
+    if (isStreaming || isCheckingAuth) return;
+
+    setIsCheckingAuth(true);
+    try {
+      const accessToken = await getAccessToken();
+      if (!accessToken) {
+        composerRef.current?.setValue(prompt);
+        openNotification?.({
+          type: "error",
+          message: "登录状态已失效",
+          description: "请重新登录后再发送对话。",
+        });
+        return;
+      }
+
+      void sendPrompt(prompt);
+    } catch (error) {
+      composerRef.current?.setValue(prompt);
+      openNotification?.({
+        type: "error",
+        message: "登录状态校验失败",
+        description: error instanceof Error ? error.message : "请重新登录后再试。",
+      });
+    } finally {
+      setIsCheckingAuth(false);
+    }
+  }, [isCheckingAuth, isStreaming, openNotification, sendPrompt]);
 
   const handleNewConversation = useCallback(() => {
     handleStopSpeech();
@@ -330,7 +358,7 @@ export const GlobalChatbox: React.FC<Props> = ({ open, onClose }) => {
 
             <AgentComposer
               ref={composerRef}
-              isHydrating={isHydrating}
+              isHydrating={isHydrating || isCheckingAuth}
               isStreaming={isStreaming}
               isListening={isListening}
               isSttSupported={isSttSupported}