refactor: [business-card] 메뉴 2개로 분리 (파트너 명함신청 / 명함신청 처리)

- 파트너 명함신청 (/sales/business-cards): 모든 사용자 (신청폼+이력)
- 명함신청 처리 (/sales/business-cards/manage): 관리자 전용 (2분할)
- 뱃지를 manage 라우트에 연동

app/Http/Controllers/Sales/BusinessCardRequestController.php

@@ -15,7 +15,7 @@ public function __construct(
     ) {}
 
     /**
-     * 목록 페이지 (관리자: 관리뷰 / 파트너: 신청뷰)
+     * 파트너 명함신청 (신청폼 + 이력) - 모든 사용자
      */
     public function index(Request $request): View|Response
     {
@@ -24,26 +24,37 @@ public function index(Request $request): View|Response
         }
 
         $user = auth()->user();
-
-        if ($user->isAdmin()) {
-            $search = $request->get('search');
-            $stats = $this->service->getStats();
-            $pendingRequests = $this->service->getPendingRequests($search);
-            $processedRequests = $this->service->getProcessedRequests($search);
-
-            return view('sales.business-cards.admin-index', compact(
-                'stats',
-                'pendingRequests',
-                'processedRequests',
-                'search'
-            ));
-        }
-
         $myRequests = $this->service->getMyRequests($user->id);
 
         return view('sales.business-cards.partner-index', compact('user', 'myRequests'));
     }
 
+    /**
+     * 명함신청 처리 (관리자 전용 - 대기/완료 2분할)
+     */
+    public function manage(Request $request): View|Response
+    {
+        if ($request->header('HX-Request')) {
+            return response('', 200)->header('HX-Redirect', route('sales.business-cards.manage'));
+        }
+
+        if (! auth()->user()->isAdmin()) {
+            abort(403, '관리자만 접근할 수 있습니다.');
+        }
+
+        $search = $request->get('search');
+        $stats = $this->service->getStats();
+        $pendingRequests = $this->service->getPendingRequests($search);
+        $processedRequests = $this->service->getProcessedRequests($search);
+
+        return view('sales.business-cards.admin-index', compact(
+            'stats',
+            'pendingRequests',
+            'processedRequests',
+            'search'
+        ));
+    }
+
     /**
      * 명함 신청 등록
      */
@@ -86,7 +97,7 @@ public function process(Request $request, int $id)
             ]);
         }
 
-        return redirect()->route('sales.business-cards.index')
+        return redirect()->route('sales.business-cards.manage')
             ->with('success', '처리가 완료되었습니다.');
     }
 }