✨ Add OAuth functionality, MCP tools, and feature tests

- 🔒 Added migrations for `oauth_access_tokens`, `oauth_refresh_tokens`, `oauth_auth_codes`, `oauth_clients`, and `oauth_device_codes`.
- 🤖 Created MCP tools (Meetups, Cities, Venues, Courses, Lecturers) for managing entities with authentication and validation.
- 🛠️ Implemented Passport-backed OAuth API guard configuration and validation endpoints.
- ✅ Added comprehensive feature tests for MCP tools and OAuth functionality (access control, validation, and token-based authentication).

config/auth.php

@@ -1,5 +1,7 @@
 <?php
 
+use App\Models\User;
+
 return [
 
     /*
@@ -40,6 +42,11 @@ return [
             'driver' => 'session',
             'provider' => 'users',
         ],
+
+        'api' => [
+            'driver' => 'passport',
+            'provider' => 'users',
+        ],
     ],
 
     /*
@@ -62,7 +69,7 @@ return [
     'providers' => [
         'users' => [
             'driver' => 'eloquent',
-            'model' => env('AUTH_MODEL', App\Models\User::class),
+            'model' => env('AUTH_MODEL', User::class),
         ],
 
         // 'users' => [