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>

pkg/api/http/service/webhook.py

@@ -0,0 +1,81 @@
+from __future__ import annotations
+
+import sqlalchemy
+
+from ....core import app
+from ....entity.persistence import webhook
+
+
+class WebhookService:
+    ap: app.Application
+
+    def __init__(self, ap: app.Application) -> None:
+        self.ap = ap
+
+    async def get_webhooks(self) -> list[dict]:
+        """Get all webhooks"""
+        result = await self.ap.persistence_mgr.execute_async(sqlalchemy.select(webhook.Webhook))
+
+        webhooks = result.all()
+        return [self.ap.persistence_mgr.serialize_model(webhook.Webhook, wh) for wh in webhooks]
+
+    async def create_webhook(self, name: str, url: str, description: str = '', enabled: bool = True) -> dict:
+        """Create a new webhook"""
+        webhook_data = {'name': name, 'url': url, 'description': description, 'enabled': enabled}
+
+        await self.ap.persistence_mgr.execute_async(sqlalchemy.insert(webhook.Webhook).values(**webhook_data))
+
+        # Retrieve the created webhook
+        result = await self.ap.persistence_mgr.execute_async(
+            sqlalchemy.select(webhook.Webhook).where(webhook.Webhook.url == url).order_by(webhook.Webhook.id.desc())
+        )
+        created_webhook = result.first()
+
+        return self.ap.persistence_mgr.serialize_model(webhook.Webhook, created_webhook)
+
+    async def get_webhook(self, webhook_id: int) -> dict | None:
+        """Get a specific webhook by ID"""
+        result = await self.ap.persistence_mgr.execute_async(
+            sqlalchemy.select(webhook.Webhook).where(webhook.Webhook.id == webhook_id)
+        )
+
+        wh = result.first()
+
+        if wh is None:
+            return None
+
+        return self.ap.persistence_mgr.serialize_model(webhook.Webhook, wh)
+
+    async def update_webhook(
+        self, webhook_id: int, name: str = None, url: str = None, description: str = None, enabled: bool = None
+    ) -> None:
+        """Update a webhook's metadata"""
+        update_data = {}
+        if name is not None:
+            update_data['name'] = name
+        if url is not None:
+            update_data['url'] = url
+        if description is not None:
+            update_data['description'] = description
+        if enabled is not None:
+            update_data['enabled'] = enabled
+
+        if update_data:
+            await self.ap.persistence_mgr.execute_async(
+                sqlalchemy.update(webhook.Webhook).where(webhook.Webhook.id == webhook_id).values(**update_data)
+            )
+
+    async def delete_webhook(self, webhook_id: int) -> None:
+        """Delete a webhook"""
+        await self.ap.persistence_mgr.execute_async(
+            sqlalchemy.delete(webhook.Webhook).where(webhook.Webhook.id == webhook_id)
+        )
+
+    async def get_enabled_webhooks(self) -> list[dict]:
+        """Get all enabled webhooks"""
+        result = await self.ap.persistence_mgr.execute_async(
+            sqlalchemy.select(webhook.Webhook).where(webhook.Webhook.enabled == True)
+        )
+
+        webhooks = result.all()
+        return [self.ap.persistence_mgr.serialize_model(webhook.Webhook, wh) for wh in webhooks]