✨ 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/passport.php

@@ -0,0 +1,48 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Passport Guard
+    |--------------------------------------------------------------------------
+    |
+    | Here you may specify which authentication guard Passport will use when
+    | authenticating users. This value should correspond with one of your
+    | guards that is already present in your "auth" configuration file.
+    |
+    */
+
+    'guard' => 'web',
+
+    'middleware' => [],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Encryption Keys
+    |--------------------------------------------------------------------------
+    |
+    | Passport uses encryption keys while generating secure access tokens for
+    | your application. By default, the keys are stored as local files but
+    | can be set via environment variables when that is more convenient.
+    |
+    */
+
+    'private_key' => env('PASSPORT_PRIVATE_KEY'),
+
+    'public_key' => env('PASSPORT_PUBLIC_KEY'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Passport Database Connection
+    |--------------------------------------------------------------------------
+    |
+    | By default, Passport's models will utilize your application's default
+    | database connection. If you wish to use a different connection you
+    | may specify the configured name of the database connection here.
+    |
+    */
+
+    'connection' => env('PASSPORT_CONNECTION'),
+
+];