fix(desktop): 审批条提交后不再永卡「提交中」+ 按 taskId 重挂载

复现：登录恢复待审任务时若捞到一个无法续跑的任务（如早期 KV 冒号 bug 留下的无
resume 记录的孤儿），点批准 → 决定发出但消费者找不到记录 → 任务永远 waiting →
审批条 busy 状态成功后从不复位 → 永卡「提交中…」spinner，看似整个应用卡死。

- decide 成功后置 submitted 并在 finally 复位 busy（此前只在 catch 复位）。
- submitted 时显示「决定已发出，等待续跑…（若长时间无响应，该任务可能已失效）」
  而非停在 spinner —— 诚实反映状态，不误导成 hang。
- Bar 加 key={taskId}：换审批任务时重挂载，避免上一个的 submitted 残留。

（孤儿任务本身已在 PG 标记 failed 清理；冒号 bug 早已修复，不再产生新孤儿。）

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

sundynix-desktop/frontend/src/shell/ApprovalBar.tsx

@@ -13,12 +13,14 @@ export function ApprovalBar({ run }: { run: RunState }) {
       ? pendingApproval(run.exec) ?? { node: "", title: run.detail || "人工审批", summary: "" }
       : null;
   if (!approval || !run.taskId) return null;
-  return <Bar taskId={run.taskId} node={approval.node} title={approval.title} summary={approval.summary} />;
+  // key=taskId：换任务时重新挂载，重置 submitted 等本地状态，避免上一个审批的「已提交」残留。
+  return <Bar key={run.taskId} taskId={run.taskId} node={approval.node} title={approval.title} summary={approval.summary} />;
 }
 
 function Bar({ taskId, node, title, summary }: { taskId: string; node: string; title: string; summary: string }) {
   const [note, setNote] = useState("");
   const [busy, setBusy] = useState<"approve" | "reject" | null>(null);
+  const [submitted, setSubmitted] = useState(false); // 决定已发出；正常情况下任务续跑后本条随 waiting 解除自动消失
   const [err, setErr] = useState("");
 
   const decide = async (approved: boolean) => {
@@ -26,8 +28,10 @@ function Bar({ taskId, node, title, summary }: { taskId: string; node: string; t
     setErr("");
     try {
       await approveTask(taskId, approved, { node, note });
+      setSubmitted(true); // 关键：成功后置「已提交」而非停在 spinner —— 否则任务若恢复不了会永远卡「提交中…」
     } catch (e) {
       setErr((e as Error).message);
+    } finally {
       setBusy(null);
     }
   };
@@ -38,25 +42,29 @@ function Bar({ taskId, node, title, summary }: { taskId: string; node: string; t
         <ShieldCheck className="h-4 w-4 text-amber-400" strokeWidth={2.2} />
         <span className="font-semibold">人工审批</span>
         <span className="text-amber-300/80">{title}</span>
-        <Badge tone="warn">等待决定</Badge>
+        <Badge tone="warn">{submitted ? "已提交决定" : "等待决定"}</Badge>
       </div>
       {summary && <pre className="max-h-20 overflow-auto whitespace-pre-wrap font-mono text-[11px] leading-relaxed text-amber-100/80">{summary}</pre>}
-      <div className="flex items-center gap-2">
-        <input
-          value={note}
-          onChange={(e) => setNote(e.target.value)}
-          placeholder="备注（可选，拒绝原因等）"
-          className="min-w-0 flex-1 rounded border border-line bg-ink-950/60 px-2 py-1 text-[11px] text-slate-200 placeholder:text-slate-600 focus:border-amber-500/50 focus:outline-none"
-        />
-        <button onClick={() => decide(true)} disabled={busy !== null}
-          className="flex items-center gap-1 rounded bg-success/20 px-2.5 py-1 text-[11px] font-medium text-success hover:bg-success/30 disabled:opacity-50">
-          <Check className="h-3.5 w-3.5" /> {busy === "approve" ? "提交中…" : "批准"}
-        </button>
-        <button onClick={() => decide(false)} disabled={busy !== null}
-          className="flex items-center gap-1 rounded bg-danger/20 px-2.5 py-1 text-[11px] font-medium text-danger hover:bg-danger/30 disabled:opacity-50">
-          <X className="h-3.5 w-3.5" /> {busy === "reject" ? "提交中…" : "拒绝"}
-        </button>
-      </div>
+      {submitted ? (
+        <p className="text-[11px] text-amber-200/80">决定已发出，等待任务续跑…（若长时间无响应，该任务可能已失效）</p>
+      ) : (
+        <div className="flex items-center gap-2">
+          <input
+            value={note}
+            onChange={(e) => setNote(e.target.value)}
+            placeholder="备注（可选，拒绝原因等）"
+            className="min-w-0 flex-1 rounded border border-line bg-ink-950/60 px-2 py-1 text-[11px] text-slate-200 placeholder:text-slate-600 focus:border-amber-500/50 focus:outline-none"
+          />
+          <button onClick={() => decide(true)} disabled={busy !== null}
+            className="flex items-center gap-1 rounded bg-success/20 px-2.5 py-1 text-[11px] font-medium text-success hover:bg-success/30 disabled:opacity-50">
+            <Check className="h-3.5 w-3.5" /> {busy === "approve" ? "提交中…" : "批准"}
+          </button>
+          <button onClick={() => decide(false)} disabled={busy !== null}
+            className="flex items-center gap-1 rounded bg-danger/20 px-2.5 py-1 text-[11px] font-medium text-danger hover:bg-danger/30 disabled:opacity-50">
+            <X className="h-3.5 w-3.5" /> {busy === "reject" ? "提交中…" : "拒绝"}
+          </button>
+        </div>
+      )}
       {err && <p className="text-[11px] text-danger">提交失败：{err}</p>}
     </div>
   );