feat(client): export digital sync diagnostics

qimingclaw/crates/agent-electron-client/embedded/sgrobot-digital/src/pages/digital/CommandDeck.tsx

@@ -1,6 +1,6 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import type { KeyboardEvent as ReactKeyboardEvent, MouseEvent as ReactMouseEvent } from 'react';
-import { Clock3, Download, Eye, PlayCircle, RefreshCw } from 'lucide-react';
+import { Clipboard, Clock3, Download, Eye, PlayCircle, RefreshCw } from 'lucide-react';
 import Avatar3D from '@/components/digital/Avatar3D';
 import { basePath } from '@/lib/basePath';
 import {
@@ -551,6 +551,57 @@ function syncAttemptTone(status: string): 'success' | 'danger' | 'info' {
   return 'info';
 }
 
+function buildSyncFailureDiagnostic(
+  failure: ManagementSyncFailure,
+  status: ManagementSyncStatus | null,
+): string {
+  return JSON.stringify(
+    {
+      generatedAt: new Date().toISOString(),
+      source: 'qimingclaw-digital-employee',
+      failure,
+      sync: status
+        ? {
+            running: status.running,
+            syncing: status.syncing,
+            enabled: status.enabled,
+            endpoint: status.endpoint,
+            missingCredentials: status.missingCredentials ?? [],
+            pending: status.pending,
+            failed: status.failed,
+            lastSyncAt: status.lastSyncAt,
+            lastSyncError: status.lastSyncError,
+            failureSummary: status.failureSummary ?? null,
+          }
+        : null,
+    },
+    null,
+    2,
+  );
+}
+
+function syncFailureDiagnosticFileName(failure: ManagementSyncFailure): string {
+  const entity = [failure.entityType, failure.entityId]
+    .filter(Boolean)
+    .join('-')
+    .replace(/[^a-z0-9._-]+/gi, '-')
+    .replace(/^-+|-+$/g, '')
+    .slice(0, 80);
+  return `qimingclaw-sync-failure-${entity || failure.id || 'diagnostic'}.json`;
+}
+
+function downloadTextFile(filename: string, content: string): void {
+  const blob = new Blob([content], { type: 'application/json;charset=utf-8' });
+  const url = URL.createObjectURL(blob);
+  const link = document.createElement('a');
+  link.href = url;
+  link.download = filename;
+  document.body.appendChild(link);
+  link.click();
+  link.remove();
+  window.setTimeout(() => URL.revokeObjectURL(url), 1000);
+}
+
 async function readManagementSyncStatus(): Promise<ManagementSyncStatus | null> {
   const bridge = window.QimingClawBridge?.digital;
   if (!bridge?.getSyncStatus) return null;
@@ -1062,6 +1113,27 @@ export default function CommandDeck({ onNavigate }: { onNavigate: (target: Digit
     }
   }, [selectedDate]);
 
+  const copySyncFailureDiagnostic = useCallback(async (failure: ManagementSyncFailure) => {
+    const diagnostic = buildSyncFailureDiagnostic(failure, managementSyncStatus);
+    try {
+      await navigator.clipboard.writeText(diagnostic);
+      setActionError(null);
+      setActionNotice('同步失败诊断已复制。');
+    } catch (error) {
+      setActionNotice(null);
+      setActionError(error instanceof Error ? error.message : '复制同步失败诊断失败');
+    }
+  }, [managementSyncStatus]);
+
+  const exportSyncFailureDiagnostic = useCallback((failure: ManagementSyncFailure) => {
+    downloadTextFile(
+      syncFailureDiagnosticFileName(failure),
+      buildSyncFailureDiagnostic(failure, managementSyncStatus),
+    );
+    setActionError(null);
+    setActionNotice('同步失败诊断已导出。');
+  }, [managementSyncStatus]);
+
   const cancelAllTasks = useCallback(() => {
     setSelectedDutyIds(new Set());
     selectionDirtyRef.current = true;
@@ -1926,6 +1998,24 @@ export default function CommandDeck({ onNavigate }: { onNavigate: (target: Digit
               >
                 关闭
               </button>
+              <button
+                type="button"
+                className="de-btn-secondary de-btn-sm"
+                onClick={() => {
+                  void copySyncFailureDiagnostic(selectedSyncFailure);
+                }}
+              >
+                <Clipboard size={14} />
+                复制诊断
+              </button>
+              <button
+                type="button"
+                className="de-btn-secondary de-btn-sm"
+                onClick={() => exportSyncFailureDiagnostic(selectedSyncFailure)}
+              >
+                <Download size={14} />
+                导出诊断
+              </button>
               {selectedSyncFailure.managementRecordUrl && (
                 <button
                   type="button"