feat: concurrent input dialog, unlock textarea during loading, fix TS errors

- Add showConcurrentDialog modal when submitting while AI is loading
- Offer interrupt (stop + submit) or queue (poll until done) options
- Remove disabled={thread.isLoading} from textarea and FileUploadButton
- Fix TS2352: cast BaseMessage to unknown first before Record
- Fix TS6133: rename unused toolName param to _toolName
- Fix TS2769: chart_type typed as union literal, not string
- Fix TS2322: separate cmdMap lookup from const declaration in soc-client

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

langgraph/src/agent/enterprise/nodes/tool-executor.ts

@@ -65,7 +65,7 @@ const ANALYSIS_KEYWORDS = /趋势|统计|分析|对比|汇总|多少|走势|变
 function hasAnalysisIntent(messages: EnterpriseState["messages"]): boolean {
   // Walk backwards to find the last human message
   for (let i = messages.length - 1; i >= 0; i--) {
-    const m = messages[i] as Record<string, unknown>;
+    const m = messages[i] as unknown as Record<string, unknown>;
     const isHuman =
       m.role === "user" ||
       (typeof m._getType === "function" && (m._getType as () => string)() === "human") ||
@@ -80,7 +80,7 @@ function hasAnalysisIntent(messages: EnterpriseState["messages"]): boolean {
 
 /** Map error to a suggestion type for the error-result card */
 function errorSuggestion(
-  toolName: string,
+  _toolName: string,
   error: unknown,
 ): "retry" | "contact_admin" | "check_input" {
   const msg = error instanceof Error ? error.message : String(error);
@@ -597,7 +597,7 @@ export async function toolExecutorNode(
             const priorityChart = Object.entries(priorityStats).map(
               ([cname, value]) => ({ name: cname, value }),
             );
-            const charts: Array<{ chart_type: string; title: string; data: Array<{ name: string; value: number }> }> = [
+            const charts: Array<{ chart_type: "bar" | "line" | "pie" | "area"; title: string; data: Array<{ name: string; value: number }> }> = [
               { chart_type: "pie", title: "状态分布", data: statusChart },
               { chart_type: "bar", title: "优先级分布", data: priorityChart },
             ];
@@ -614,7 +614,7 @@ export async function toolExecutorNode(
                 .map(([cname, value]) => ({ name: cname, value }));
               if (trendData.length >= 1) {
                 charts.push({
-                  chart_type: "line",
+                  chart_type: "line" as const,
                   title: "工单创建时间趋势",
                   data: trendData,
                 });

langgraph/src/agent/enterprise/tools/soc-client.ts

@@ -324,11 +324,12 @@ export async function sandboxRun(
       throw new Error(`Unsupported language: ${language}. Supported: ${SUPPORTED_LANGUAGES.join(", ")}`);
     }
     const escaped = code.replace(/'/g, "'\\''");
-    const cmd: Record<SupportedLang, string> = {
+    const cmdMap: Record<SupportedLang, string> = {
       python: `python3 -c '${escaped}'`,
       javascript: `node -e '${escaped}'`,
       bash: `bash -c '${escaped}'`,
-    }[language as SupportedLang];
+    };
+    const cmd = cmdMap[language as SupportedLang];
 
     let execResp: Response;
     try {

langgraph/src/main.tsx

@@ -145,6 +145,10 @@ function App() {
   // Pending retry tool name — set by soc:retry-tool, consumed on next submit
   const pendingRetryToolRef = useRef<string | null>(null);
 
+  // ── Concurrent submit state ───────────────────────────────────────────────
+  const [showConcurrentDialog, setShowConcurrentDialog] = useState(false);
+  const pendingSubmitRef = useRef<(() => void) | null>(null);
+
   const thread = useStream<{ messages: Message[]; ui: UIMsgLocal[] }>({
     apiUrl: LANGGRAPH_URL,
     assistantId: "agent",
@@ -283,7 +287,19 @@ function App() {
   async function handleSubmit(e: React.FormEvent) {
     e.preventDefault();
     const text = input.trim();
-    if ((!text && !attachedFile) || thread.isLoading) return;
+    if (!text && !attachedFile) return;
+
+    // If AI is still generating, show concurrent choice dialog
+    if (thread.isLoading) {
+      pendingSubmitRef.current = () => doSubmit(text);
+      setShowConcurrentDialog(true);
+      return;
+    }
+
+    doSubmit(text);
+  }
+
+  async function doSubmit(text: string) {
     setInput("");
     setSourceLabel(null);
     // Clear draft and update lastActive for this thread
@@ -354,6 +370,34 @@ function App() {
     }
   }
 
+  // ── Concurrent dialog handlers ────────────────────────────────────────────
+  function handleConcurrentInterrupt() {
+    setShowConcurrentDialog(false);
+    thread.stop();
+    const submit = pendingSubmitRef.current;
+    pendingSubmitRef.current = null;
+    setTimeout(() => submit?.(), 300);
+  }
+
+  function handleConcurrentQueue() {
+    setShowConcurrentDialog(false);
+    const submit = pendingSubmitRef.current;
+    pendingSubmitRef.current = null;
+    const poll = () => {
+      if (!thread.isLoading) {
+        submit?.();
+      } else {
+        setTimeout(poll, 500);
+      }
+    };
+    setTimeout(poll, 500);
+  }
+
+  function handleConcurrentCancel() {
+    setShowConcurrentDialog(false);
+    pendingSubmitRef.current = null;
+  }
+
   // ── Regenerate last AI message ───────────────────────────────────────────
   function handleRegenerate() {
     // Find last human message
@@ -842,7 +886,7 @@ function App() {
               </div>
             )}
             <form onSubmit={handleSubmit} className="flex gap-2">
-              <FileUploadButton onFileSelect={setAttachedFile} disabled={thread.isLoading} />
+              <FileUploadButton onFileSelect={setAttachedFile} />
               <textarea
                 ref={textareaRef}
                 className="flex-1 rounded-xl border border-input bg-background px-4 py-2.5 text-sm outline-none focus:ring-2 focus:ring-ring placeholder:text-muted-foreground disabled:opacity-50 resize-none overflow-y-auto"
@@ -860,7 +904,6 @@ function App() {
                   }
                 }}
                 onPaste={handlePaste}
-                disabled={thread.isLoading}
                 autoFocus
               />
               {thread.isLoading ? (
@@ -901,6 +944,42 @@ function App() {
         </div>
       </div>
 
+      {/* ── Concurrent submit dialog ── */}
+      {showConcurrentDialog && (
+        <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/40 backdrop-blur-sm">
+          <div className="bg-background border border-border rounded-2xl shadow-xl p-6 w-80 flex flex-col gap-4">
+            <div className="flex flex-col gap-1">
+              <p className="font-semibold text-sm">AI 正在处理上一条消息</p>
+              <p className="text-xs text-muted-foreground">请选择如何处理新消息：</p>
+            </div>
+            <div className="flex flex-col gap-2">
+              <button
+                type="button"
+                onClick={handleConcurrentInterrupt}
+                className="w-full rounded-xl bg-destructive text-destructive-foreground px-4 py-2.5 text-sm font-medium hover:opacity-90 transition-opacity flex items-center gap-2"
+              >
+                <Square className="size-4 fill-current" />
+                中断上一条，处理这条
+              </button>
+              <button
+                type="button"
+                onClick={handleConcurrentQueue}
+                className="w-full rounded-xl bg-primary text-primary-foreground px-4 py-2.5 text-sm font-medium hover:opacity-90 transition-opacity"
+              >
+                加入队列，等上一条完成
+              </button>
+              <button
+                type="button"
+                onClick={handleConcurrentCancel}
+                className="w-full rounded-xl border border-border px-4 py-2.5 text-sm font-medium hover:bg-accent transition-colors"
+              >
+                取消
+              </button>
+            </div>
+          </div>
+        </div>
+      )}
+
       {/* ── Canvas panel (right drawer) ── */}
       <CanvasPanel doc={canvasDoc} onClose={() => setCanvasDoc(null)} />
       </div>