feat: UserApi.php Swagger 점검 및 개선 (Phase 3-4)

- UserUpdateRequest.php 생성 (검증 로직 분리)
- PasswordChangeRequest.php 생성 (비밀번호 변경 검증)
- SwitchTenantRequest.php 생성 (테넌트 전환 검증)
- UserApi.php에 Request 스키마 추가
- UserController.php FormRequest 적용 및 DI 패턴 적용
- MemberService static 호출 → DI 인스턴스 호출
- lang/ko/message.php user 메시지 키 추가
- SAM API Development Rules 준수 완료

app/Http/Controllers/Api/V1/UserController.php

@@ -4,59 +4,62 @@
 
 use App\Helpers\ApiResponse;
 use App\Http\Controllers\Controller;
+use App\Http\Requests\User\PasswordChangeRequest;
+use App\Http\Requests\User\SwitchTenantRequest;
+use App\Http\Requests\User\UserUpdateRequest;
 use App\Services\MemberService;
 use Illuminate\Http\Request;
 
 class UserController extends Controller
 {
+    public function __construct(private MemberService $service) {}
+
     public function index(Request $request)
     {
         return ApiResponse::handle(function () use ($request) {
-            return MemberService::getMembers($request->all());
-        }, '회원목록 조회');
+            return $this->service->getMembers($request->all());
+        }, __('message.user.fetched'));
     }
 
     public function show($userNo)
     {
         return ApiResponse::handle(function () use ($userNo) {
-            return MemberService::getMember($userNo);
-        }, '회원 상세조회');
+            return $this->service->getMember($userNo);
+        }, __('message.user.fetched'));
     }
 
     public function me(Request $request)
     {
         return ApiResponse::handle(function () use ($request) {
-            return MemberService::getMyInfo($request);
-        }, '나의 정보 조회');
+            return $this->service->getMyInfo($request);
+        }, __('message.user.me_fetched'));
     }
 
-    public function meUpdate(Request $request)
+    public function meUpdate(UserUpdateRequest $request)
     {
         return ApiResponse::handle(function () use ($request) {
-            return MemberService::getMyUpdate($request);
-        }, '나의 정보 수정');
+            return $this->service->getMyUpdate($request);
+        }, __('message.user.me_updated'));
     }
 
-    public function changePassword(Request $request)
+    public function changePassword(PasswordChangeRequest $request)
     {
         return ApiResponse::handle(function () use ($request) {
-            return MemberService::setMyPassword($request);
-        }, '나의 비밀번호 수정');
+            return $this->service->setMyPassword($request);
+        }, __('message.user.password_changed'));
     }
 
     public function tenants(Request $request)
     {
         return ApiResponse::handle(function () use ($request) {
-            return MemberService::getMyTenants($request);
-        }, '나의 테넌트 목록 조회');
+            return $this->service->getMyTenants($request);
+        }, __('message.user.tenants_fetched'));
     }
 
-    public function switchTenant(Request $request)
+    public function switchTenant(SwitchTenantRequest $request)
     {
-        $tenant_id = $request->tenant_id;
-
-        return ApiResponse::handle(function () use ($tenant_id) {
-            return MemberService::switchMyTenant($tenant_id);
-        }, '활성 테넌트 전환');
+        return ApiResponse::handle(function () use ($request) {
+            return $this->service->switchMyTenant($request->validated()['tenant_id']);
+        }, __('message.user.tenant_switched'));
     }
-}
+}