Improve Feishu permission checks and OpenVPN auth result page

frontend/src/locales/en-US.json

@@ -575,8 +575,9 @@
   },
   "identity": {
     "tab": "Feishu identity", "title": "Built-in Feishu identity service", "description": "Issue OIDC identities for VPN using your existing HTTPS domain. Feishu app credentials stay upstream; this platform creates separate VPN client credentials.",
-    "guideTitle": "Configure your Feishu app", "guideApp": "In Feishu Open Platform → Enterprise apps, open your app. Copy the App ID and App Secret from Credentials & Basic Information into the fields below. Use enterprise app credentials.", "guidePermission": "For automatic tenant lookup, request enterprise information read access (search for tenant:tenant:readonly or 'get enterprise information'; use the actual name shown by Feishu). For browser login, request the basic user information permission contact:user.base:readonly (use Feishu's actual console label).", "guidePublish": "Publish or enable the new app version, complete administrator review if required, and add VPN users to the app's availability scope. Creating the app or adding a permission alone does not activate it.", "guideCallback": "In Security Settings → Redirect URLs, add this exact Feishu sign-in callback:", "guideCallbackPending": "Configure the HTTPS domain under Public Gateway first to see the callback URL.", "guideVerify": "Save and enable the identity service, then sync its public routes. Configure and start an OIDC OpenVPN tunnel, verify openvpn-auth-oauth2 is installed, sync the routes again, and test with a user in the app's availability scope.", "guideManual": "If automatic lookup fails, enter a tenant_key verified from user information in the same enterprise. The Feishu error code appears below the field; retry after changing credentials or permissions.", "guideScope": "Finding tenant_key only proves the enterprise information API works; it does not confirm Feishu browser sign-in or VPN access. Browser login also needs the basic user information permission contact:user.base:readonly, the callback URL, app publication, and user availability. VPN also needs a tunnel and auth component. The Feishu callback differs from the VPN callback.",
-    "appId": "Feishu App ID", "appSecret": "Feishu App Secret", "secretPlaceholder": "Leave blank to retain the secret; use a rotated secret for new setup", "tenant": "Allowed Feishu tenant_key", "tenantPlaceholder": "Fetch automatically or enter manually", "fetchTenant": "Fetch tenant ID", "fetchingTenant": "Requesting Feishu ({seconds}s)…", "tenantFetched": "Feishu tenant ID retrieved", "tenantFailed": "Could not fetch Feishu tenant", "tenantNotEnabled": "Tenant ID is set; enable the identity service and finish the callback, app publication, and tunnel configuration.", "enabled": "Enable built-in issuer", "httpsOnly": "Enter app credentials only through the HTTPS management site. Switch to its secure address.", "openHttps": "Open HTTPS management site",
+    "guideTitle": "Feishu app setup", "guideApp": "Enter the enterprise app ID and secret; enable both permissions below.", "guidePermission": "", "guidePublish": "Publish the app and include VPN users in its availability scope.", "guideCallback": "Security Settings → Redirect URL:", "guideCallbackPending": "Configure an HTTPS domain first.", "guideVerify": "", "guideManual": "", "guideScope": "",
+    "tenantPermission": "tenant:tenant:readonly · enterprise", "userPermission": "contact:user.base:readonly · user", "checking": "Checking", "checked": "Verified", "checkFailed": "Check failed", "checkPending": "Not checked", "checkedByLogin": "Login verified", "loginPending": "Verify on first login",
+    "appId": "Feishu App ID", "appSecret": "Feishu App Secret", "secretPlaceholder": "Leave blank if saved; enter a new secret to rotate", "tenant": "Allowed Feishu tenant_key", "tenantPlaceholder": "Fetched automatically or enter manually", "fetchTenant": "Check again", "fetchingTenant": "Checking ({seconds}s)…", "tenantFetched": "Enterprise permission verified", "tenantFailed": "Enterprise permission check failed", "tenantNotEnabled": "", "enabled": "Enable built-in issuer", "httpsOnly": "Use HTTPS to enter app credentials.", "openHttps": "Open HTTPS management site",
     "httpsRequired": "Configure and activate your public HTTPS site and certificate first.", "gatewayPending": "The identity provider is saved but Nginx does not yet route /id/; sync the gateway.",
     "addresses": "Addresses and client credentials", "issuer": "OIDC issuer", "feishuCallback": "Callback registered in Feishu", "vpnCallback": "VPN client callback", "clientId": "VPN Client ID",
     "oneTimeSecret": "New VPN Client Secret is displayed only once. Store it safely; rotation of active tunnel credentials requires separate planning.", "routeHint": "Sync identity routes first. After starting the one OpenVPN OIDC tunnel using this domain, sync again to route /oauth2/ to its local auth component.",

frontend/src/locales/zh-CN.json

@@ -575,8 +575,9 @@
   },
   "identity": {
     "tab": "飞书身份", "title": "内置飞书身份服务", "description": "使用现有 HTTPS 域名签发 VPN 所需 OIDC 身份令牌。飞书 App 凭据仅用于飞书上游，VPN 客户端凭据由本平台生成。",
-    "guideTitle": "飞书开放平台配置步骤", "guideApp": "在飞书开放平台 → 企业自建应用中打开你的应用；在「凭证与基础信息」复制 App ID 和 App Secret，填入下方。不要使用商店应用或智能体的其他凭据。", "guidePermission": "自动获取企业标识：在「权限管理」申请企业信息读取权限（搜索 tenant:tenant:readonly 或“获取企业信息”，以飞书控制台实际名称为准）；浏览器登录：申请用户基础信息权限 contact:user.base:readonly（以飞书后台实际名称为准），本系统通过该授权读取登录用户。", "guidePublish": "按企业要求发布/启用新版本，等待管理员审核，并在「应用可用范围」加入需要登录 VPN 的用户；只创建应用或添加权限不代表已生效。", "guideCallback": "在飞书应用的「安全设置 → 重定向 URL」添加飞书登录回调（完整地址）：", "guideCallbackPending": "先在「公网入口」完成 HTTPS 域名配置，页面才会显示回调地址。", "guideVerify": "保存并启用本页身份服务，再同步身份公网路由；配置并启动支持 OIDC 的 OpenVPN 专线，确认 openvpn-auth-oauth2 已安装后再次同步公网路由，最后用应用可用范围内的账号试登录。", "guideManual": "自动获取失败时可手填 tenant_key；请从同一企业的飞书用户信息核对。错误码会显示在输入框下方，凭据或权限变更后可重试。", "guideScope": "查到 tenant_key 只说明企业信息接口可用，不代表飞书网页登录或 VPN 已可连接。网页登录还需要用户基础信息权限 contact:user.base:readonly、回调、发布与用户可用范围；VPN 还需配置专线和认证组件。飞书回调与 VPN 客户端回调是两个地址。",
-    "appId": "飞书 App ID", "appSecret": "飞书 App Secret", "secretPlaceholder": "留空保持当前密钥；新配置请输入轮换后的密钥", "tenant": "允许的飞书 tenant_key", "tenantPlaceholder": "可自动获取，也可手动填写", "fetchTenant": "自动获取企业标识", "fetchingTenant": "正在请求飞书（{seconds} 秒）…", "tenantFetched": "已读取飞书企业标识", "tenantFailed": "读取飞书企业信息失败", "tenantNotEnabled": "企业标识已填写；仍需启用身份服务并完成回调、应用发布及专线配置。", "enabled": "启用内置发行者", "httpsOnly": "应用密钥只能通过 HTTPS 管理入口填写；请切换到安全地址。", "openHttps": "打开 HTTPS 管理入口",
+    "guideTitle": "飞书应用准备", "guideApp": "填入企业自建应用的 App ID 和 App Secret；在权限管理开通下方两项权限。", "guidePermission": "", "guidePublish": "发布应用，并将 VPN 用户加入应用可用范围。", "guideCallback": "安全设置 → 重定向 URL：", "guideCallbackPending": "请先配置 HTTPS 域名。", "guideVerify": "", "guideManual": "", "guideScope": "",
+    "tenantPermission": "tenant:tenant:readonly · 企业信息", "userPermission": "contact:user.base:readonly · 用户信息", "checking": "检测中", "checked": "已验证", "checkFailed": "检测失败", "checkPending": "待检测", "checkedByLogin": "登录已验证", "loginPending": "首次登录后验证",
+    "appId": "飞书 App ID", "appSecret": "飞书 App Secret", "secretPlaceholder": "已保存可留空；更换密钥请填写", "tenant": "允许的飞书 tenant_key", "tenantPlaceholder": "自动读取，也可手填", "fetchTenant": "重新检测", "fetchingTenant": "正在检测（{seconds} 秒）…", "tenantFetched": "企业信息权限已验证", "tenantFailed": "检测企业信息权限失败", "tenantNotEnabled": "", "enabled": "启用内置发行者", "httpsOnly": "请通过 HTTPS 管理入口填写密钥。", "openHttps": "打开 HTTPS 管理入口",
     "httpsRequired": "请先完成公网域名 HTTPS 证书和站点配置，再启用身份服务。", "gatewayPending": "身份服务已保存，但 Nginx 尚未转发 /id/；请同步公网入口。",
     "addresses": "接入地址与客户端凭据", "issuer": "OIDC 发行者", "feishuCallback": "登记到飞书应用的回调", "vpnCallback": "VPN 客户端回调", "clientId": "VPN Client ID",
     "oneTimeSecret": "新 VPN Client Secret 只显示这一次，请立即妥善保存；现有专线的密钥轮换需另行安排。", "routeHint": "先同步身份路由；启动唯一一条使用当前域名的 OpenVPN OIDC 专线后，再同步一次以转发 /oauth2/ 到本机认证组件。",