feat: Authentication

- Update User model
- Create authentication controller
- Update api router

routes/api.php

@@ -1,8 +1,22 @@
 <?php
 
+use App\Http\Controllers\AuthController;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Route;
 
-Route::get('/user', function (Request $request) {
-    return $request->user();
-})->middleware('auth:sanctum');
+Route::post('/auth/register', [AuthController::class, 'register']);
+Route::post('/auth/login', [AuthController::class, 'login']);
+
+// Protected routes (require authentication)
+Route::middleware('auth:sanctum')->group(function () {
+    Route::post('/auth/logout', [AuthController::class, 'logout']);
+
+    // Example protected route
+    Route::get('/auth/user', function (Request $request) {
+        return $request->user();
+    });
+});
+
+Route::get('/test', function () {
+    return response()->json(['message' => 'API is working!']);
+});