feat:AI 음성녹음 실시간 음성인식 및 카테고리 선택기 추가

- Web Speech API로 녹음 중 실시간 텍스트 표시
- 인터뷰 카테고리/템플릿 선택 드롭다운 추가
- 녹음/파일업로드 시 interview_template_id 전달

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Http/Controllers/System/AiVoiceRecordingController.php

@@ -4,6 +4,7 @@
 
 use App\Http\Controllers\Controller;
 use App\Models\AiVoiceRecording;
+use App\Models\Interview\InterviewCategory;
 use App\Services\AiVoiceRecordingService;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
@@ -42,6 +43,24 @@ public function list(Request $request): JsonResponse
         ]);
     }
 
+    /**
+     * 카테고리 + 템플릿 목록
+     */
+    public function categories(): JsonResponse
+    {
+        $categories = InterviewCategory::with(['templates' => function ($q) {
+            $q->where('is_active', true)->orderBy('sort_order');
+        }])
+            ->where('is_active', true)
+            ->orderBy('sort_order')
+            ->get(['id', 'name', 'description']);
+
+        return response()->json([
+            'success' => true,
+            'data' => $categories,
+        ]);
+    }
+
     /**
      * 새 녹음 생성
      */
@@ -49,6 +68,7 @@ public function store(Request $request): JsonResponse
     {
         $validated = $request->validate([
             'title' => 'nullable|string|max:200',
+            'interview_template_id' => 'nullable|integer|exists:interview_templates,id',
         ]);
 
         $recording = $this->service->create($validated);
@@ -107,10 +127,12 @@ public function uploadFile(Request $request): JsonResponse
         $validated = $request->validate([
             'audio_file' => 'required|file|mimes:webm,wav,mp3,ogg,m4a,mp4|max:102400',
             'title' => 'nullable|string|max:200',
+            'interview_template_id' => 'nullable|integer|exists:interview_templates,id',
         ]);
 
         $recording = $this->service->create([
             'title' => $validated['title'] ?? '업로드된 음성녹음',
+            'interview_template_id' => $validated['interview_template_id'] ?? null,
         ]);
 
         $result = $this->service->processUploadedFile(