feat(mcp): add MCP server with read-only tools for Coolify resources

Add Model Context Protocol server exposing Coolify infrastructure data
to AI assistants. Includes tools for listing/fetching servers, projects,
applications, databases, and services, scoped to authenticated team tokens.

- Add CoolifyServer with 10 read-only tools (list/get for all resource types)
- Add BuildsResponse and ResolvesTeam traits for shared tool logic
- Add EnsureMcpEnabled middleware guarding /mcp routes
- Add enable/disable MCP API endpoints (root-only)
- Add is_mcp_server_enabled toggle in instance settings and advanced UI
- Add migration for is_mcp_server_enabled column
- Add feature tests for MCP endpoints and toggle API
- Scrub sensitive keys (passwords, tokens, raw IDs) from all responses

routes/api.php

@@ -35,6 +35,8 @@ Route::group([
 ], function () {
     Route::get('/enable', [OtherController::class, 'enable_api']);
     Route::get('/disable', [OtherController::class, 'disable_api']);
+    Route::get('/mcp/enable', [OtherController::class, 'enable_mcp']);
+    Route::get('/mcp/disable', [OtherController::class, 'disable_mcp']);
 });
 Route::group([
     'middleware' => ['auth:sanctum', ApiAllowed::class, 'api.sensitive'],