feat: Add webhook push functionality for bot message events (#1768)

* Initial plan

* Backend: Add webhook persistence model, service, API endpoints and message push functionality

Co-authored-by: RockChinQ <45992437+RockChinQ@users.noreply.github.com>

* Frontend: Rename API Keys to API Integration, add webhook management UI with tabs

Co-authored-by: RockChinQ <45992437+RockChinQ@users.noreply.github.com>

* Fix frontend linting issues and formatting

Co-authored-by: RockChinQ <45992437+RockChinQ@users.noreply.github.com>

* chore: perf ui in api integration dialog

* perf: webhook data pack structure

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: RockChinQ <45992437+RockChinQ@users.noreply.github.com>
Co-authored-by: Junyan Qin <rockchinq@gmail.com>

web/src/i18n/locales/zh-Hant.ts

@@ -58,7 +58,9 @@ const zhHant = {
     passwordsDoNotMatch: '兩次輸入的密碼不一致',
     changePasswordSuccess: '密碼修改成功',
     changePasswordFailed: '密碼修改失敗，請檢查當前密碼是否正確',
+    apiIntegration: 'API 整合',
     apiKeys: 'API 金鑰',
+    manageApiIntegration: '管理 API 整合',
     manageApiKeys: '管理 API 金鑰',
     createApiKey: '建立 API 金鑰',
     apiKeyName: 'API 金鑰名稱',
@@ -72,6 +74,19 @@ const zhHant = {
     apiKeyCopied: 'API 金鑰已複製到剪貼簿',
     noApiKeys: '暫無 API 金鑰',
     apiKeyHint: 'API 金鑰允許外部系統訪問 LangBot 的 Service API',
+    webhooks: 'Webhooks',
+    createWebhook: '建立 Webhook',
+    webhookName: 'Webhook 名稱',
+    webhookUrl: 'Webhook URL',
+    webhookDescription: 'Webhook 描述',
+    webhookEnabled: '是否啟用',
+    webhookCreated: 'Webhook 建立成功',
+    webhookDeleted: 'Webhook 刪除成功',
+    webhookDeleteConfirm: '確定要刪除此 Webhook 嗎？',
+    webhookNameRequired: 'Webhook 名稱不能為空',
+    webhookUrlRequired: 'Webhook URL 不能為空',
+    noWebhooks: '暫無 Webhook',
+    webhookHint: 'Webhook 允許 LangBot 將個人訊息和群組訊息事件推送到外部系統',
     actions: '操作',
     apiKeyCreatedMessage: '請複製此 API 金鑰。',
   },