docs: add webhook notification provider and update related documentation

- Introduced a new webhook notification provider in the meta.json file.
- Updated the overview documentation to include webhook notifications as a supported method.
- Created a detailed guide for configuring and testing webhook notifications, including JSON payload examples and production setup recommendations.

Author: Siumauricio

apps/docs/content/docs/core/(Notifications)/meta.json

@@ -8,6 +8,7 @@
 		"lark",
 		"email",
 		"gotify",
-		"ntfy"
+		"ntfy",
+		"webhook"
 	]
 }

apps/docs/content/docs/core/(Notifications)/overview.mdx

@@ -29,4 +29,5 @@ Dokploy supports the following notification providers:
 5. **Email**: Email is a popular method for sending messages to a group of recipients.
 6. **Gotify**: Gotify is a self-hosted push notification service.
 7. **Ntfy**: Ntfy is a simple HTTP-based pub-sub notification service.
+8. **Webhook**: Webhook is a generic webhook notification service.
 

apps/docs/content/docs/core/(Notifications)/webhook.mdx

@@ -0,0 +1,50 @@
+---
+title: Webhook
+description: 'Configure webhook notifications for your applications.'
+---
+
+Webhook notifications are a generic way to receive notifications from Dokploy to any HTTP endpoint. You can choose to receive notifications for specific events or all events. Notifications are sent in JSON format.
+
+## Webhook Notifications
+
+To start receiving webhook notifications, you need to fill the form with the following details:
+
+- **Name**: Enter any name you want.
+- **Webhook URL**: Enter the webhook URL where you want to receive notifications. eg. `https://your-endpoint.com/webhook`
+
+## Testing Your Webhook
+
+For testing purposes, you can use [Webhook.site](https://webhook.site) to generate a unique URL and inspect the JSON payload that Dokploy sends:
+
+1. Go to [https://webhook.site](https://webhook.site)
+2. Copy your unique webhook URL
+3. Go to Dokploy **Notifications** and select **Webhook** as the notification provider
+4. Enter a name for your notification configuration
+5. Paste the webhook URL you copied
+6. Click on **Test** to send a test notification
+7. Check your Webhook.site page to see the JSON payload
+8. Click on **Create** to save the notification
+
+## JSON Format
+
+Dokploy sends notifications in JSON format. The payload structure includes information about the event type, timestamp, and relevant details about the action that triggered the notification.
+
+**Example notification payload:**
+
+```json
+{
+  "title": "Test Notification",
+  "message": "Hi, From Dokploy 👋",
+  "timestamp": "2025-12-07T19:41:53.470Z"
+}
+```
+
+## Production Setup
+
+For production use, ensure your webhook endpoint:
+
+- Accepts POST requests
+- Returns a 2xx HTTP status code for successful delivery
+- Handles JSON payloads
+- Is accessible from the internet (or from your Dokploy server's network)
+- Implements proper authentication if needed (consider using HTTPS with API keys in headers)