Add Cockpit blueprint with Docker Compose and configuration files

- Introduced Docker Compose setup for Cockpit service, including environment variables and volume configuration.
- Added logo for Cockpit.
- Created template.toml for Cockpit with default variables for configuration.
- Updated meta.json to include Cockpit with detailed description, logo, and relevant links.

meta.json

@@ -2416,5 +2416,22 @@
       "web-based",
       "console"
     ]
+  },
+  {
+    "id": "cockpit",
+    "name": "Cockpit",
+    "version": "core-2.11.0",
+    "description": "Cockpit is a headless content platform designed to streamline the creation, connection, and delivery of content for creators, marketers, and developers. It is built with an API-first approach, enabling limitless digital solutions.",
+    "logo": "logo.png",
+    "links": {
+      "github": "https://github.com/Cockpit-HQ",
+      "website": "https://getcockpit.com",
+      "docs": "https://getcockpit.com/documentation"
+    },
+    "tags": [
+      "cms",
+      "content-management",
+      "api"
+    ]
   }
 ]