feat(ui): add version sync timestamp to ProxyStatusWidget

- Show current CLIProxyAPI version (e.g., v6.5.53)
- Display "Synced Xm ago" with full timestamp on hover
- Extend API response to include checkedAt timestamp

src/cliproxy/binary-manager.ts

@@ -59,6 +59,7 @@ interface UpdateCheckResult {
   currentVersion: string;
   latestVersion: string;
   fromCache: boolean;
+  checkedAt: number; // Unix timestamp of last check
 }
 
 /** Default configuration */
@@ -172,19 +173,21 @@ export class BinaryManager {
     const currentVersion = this.getInstalledVersion();
 
     // Try cache first
-    const cachedVersion = this.getCachedLatestVersion();
-    if (cachedVersion) {
-      this.log(`Using cached version: ${cachedVersion}`);
+    const cache = this.getVersionCache();
+    if (cache) {
+      this.log(`Using cached version: ${cache.latestVersion}`);
       return {
-        hasUpdate: this.isNewerVersion(cachedVersion, currentVersion),
+        hasUpdate: this.isNewerVersion(cache.latestVersion, currentVersion),
         currentVersion,
-        latestVersion: cachedVersion,
+        latestVersion: cache.latestVersion,
         fromCache: true,
+        checkedAt: cache.checkedAt,
       };
     }
 
     // Fetch from GitHub API
     const latestVersion = await this.fetchLatestVersion();
+    const now = Date.now();
     this.cacheLatestVersion(latestVersion);
 
     return {
@@ -192,6 +195,7 @@ export class BinaryManager {
       currentVersion,
       latestVersion,
       fromCache: false,
+      checkedAt: now,
     };
   }
 
@@ -287,9 +291,9 @@ export class BinaryManager {
   }
 
   /**
-   * Get cached latest version if still valid
+   * Get version cache data if still valid
    */
-  private getCachedLatestVersion(): string | null {
+  private getVersionCache(): VersionCache | null {
     const cachePath = this.getVersionCachePath();
     if (!fs.existsSync(cachePath)) {
       return null;
@@ -301,7 +305,7 @@ export class BinaryManager {
 
       // Check if cache is still valid
       if (Date.now() - cache.checkedAt < VERSION_CACHE_DURATION_MS) {
-        return cache.latestVersion;
+        return cache;
       }
 
       // Cache expired
@@ -1001,6 +1005,7 @@ export interface CliproxyUpdateCheckResult {
   currentVersion: string;
   latestVersion: string;
   fromCache: boolean;
+  checkedAt: number; // Unix timestamp of last check
 }
 
 /**

ui/src/components/proxy-status-widget.tsx

@@ -31,6 +31,17 @@ function formatUptime(startedAt?: string): string {
   return `${minutes}m`;
 }
 
+function formatTimeAgo(timestamp?: number): string {
+  if (!timestamp) return '';
+  const diff = Date.now() - timestamp;
+  const minutes = Math.floor(diff / (1000 * 60));
+  const hours = Math.floor(diff / (1000 * 60 * 60));
+
+  if (minutes < 1) return 'just now';
+  if (minutes < 60) return `${minutes}m ago`;
+  return `${hours}h ago`;
+}
+
 export function ProxyStatusWidget() {
   const { data: status, isLoading } = useProxyStatus();
   const { data: updateCheck } = useCliproxyUpdateCheck();
@@ -167,6 +178,18 @@ export function ProxyStatusWidget() {
           </Button>
         </div>
       )}
+
+      {/* Version sync indicator */}
+      {updateCheck?.currentVersion && (
+        <div className="mt-2 pt-2 border-t border-muted flex items-center justify-between text-[10px] text-muted-foreground/70">
+          <span>v{updateCheck.currentVersion}</span>
+          {updateCheck.checkedAt && (
+            <span title={new Date(updateCheck.checkedAt).toLocaleString()}>
+              Synced {formatTimeAgo(updateCheck.checkedAt)}
+            </span>
+          )}
+        </div>
+      )}
     </div>
   );
 }

ui/src/lib/api-client.ts

@@ -196,6 +196,7 @@ export interface CliproxyUpdateCheckResult {
   currentVersion: string;
   latestVersion: string;
   fromCache: boolean;
+  checkedAt: number; // Unix timestamp of last check
 }
 
 // API