Import Feishu directory with optional 30-minute sync

frontend/src/locales/en-US.json

@@ -793,6 +793,9 @@
     "setupTitle": "Optional HTTPS public gateway", "setupStepCheck": "Detect system", "setupStepInstall": "Install dependencies", "setupStepConfigure": "Configure gateway and certificate", "detectedSystem": "Server OS", "setupUnsupported": "Automatic setup requires root on Ubuntu or TencentOS Server 4", "setupScope": "Use only if you choose the Nginx gateway. Installs Nginx / Certbot and prepares the validation directory. It does not install VPN protocol dependencies, enable ports, or issue certificates.", "setupButton": "Prepare Nginx / Certbot", "setupComplete": "Dependencies are ready; configure the site and certificate next", "setupFailed": "Initialization failed; inspect the output", "setupInterrupted": "Log connection interrupted; refresh status. Installation may still be running on the server",
     "commonSetupTitle": "First-time shared network setup", "commonSetupHint": "Check permissions, default route and IPv4 forwarding. Enable shared forwarding only when needed; install protocol-specific dependencies separately in Create Tunnel.", "hostRoot": "Privileges", "hostRoute": "Default route", "hostForward": "IPv4 forwarding", "enableForwarding": "Enable IPv4 forwarding", "forwardingEnabled": "IPv4 forwarding enabled"
   },
+  "feishuSync": {
+    "title": "Feishu directory", "hint": "Import manually or every 30 minutes when enabled. Imported members do not receive VPN access or tunnel grants. Names are shown exactly as returned by Feishu.", "permissions": "Grant app identity access to department and user lists, publish the app, and set its directory visibility to the intended departments and members.", "auto": "Auto sync (30 min)", "run": "Sync now", "lastSuccess": "Last success", "counts": "Departments {departments} · members {members}", "name": "Name", "departments": "Department IDs", "firstMembers": "Showing the first 500 members", "saved": "Sync settings saved", "started": "Sync started; watch progress below", "done": "Directory sync complete", "failed": "Directory sync failed"
+  },
   "feishuDirectory": {
     "title": "Feishu directory lookup",
     "hint": "After sign-in, check the name. The basic name API requires the app identity scope contact:user.basic_profile:readonly and a published app.",