refactor(tkqc): UI 스타일 통일 + 일일공수 제거 + 메뉴 정리

- UI: tkuser 스타일로 통일 (dark slate 헤더, flat 배경, gradient/glass 제거)
- tkqc-common.css 공통 스타일시트 신규 생성
- 의견 제시 API 별도 엔드포인트 추가 (모든 사용자 접근 가능)
- 일일 공수 기능 완전 제거 (라우터, 모델, 스키마, DB 테이블 DROP)
- 프로젝트 관리/사용자 관리 메뉴 숨김 (통합관리 페이지로 이관)

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

system3-nonconformance/web/issues-inbox.html

@@ -13,15 +13,12 @@
     
     <!-- 모바일 캘린더 스타일 -->
     <link rel="stylesheet" href="/static/css/mobile-calendar.css">
-    
+
+    <!-- 공통 스타일 -->
+    <link rel="stylesheet" href="/static/css/tkqc-common.css">
+
     <!-- Custom Styles -->
     <style>
-        @import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
-        
-        body {
-            font-family: 'Inter', sans-serif;
-        }
-        
         .loading-overlay {
             position: fixed;
             top: 0;
@@ -37,81 +34,32 @@
             visibility: hidden;
             transition: all 0.3s ease;
         }
-        
+
         .loading-overlay.active {
             opacity: 1;
             visibility: visible;
         }
-        
-        .issue-card {
-            transition: all 0.2s ease;
-            border-left: 4px solid transparent;
-        }
-        
+
         .issue-card.unread {
             border-left-color: #3b82f6;
-            background: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%);
+            background: #f8fafc;
         }
-        
-        .issue-card:hover {
-            transform: translateY(-2px);
-            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
-        }
-        
+
         .priority-high { border-left-color: #ef4444; }
         .priority-medium { border-left-color: #f59e0b; }
         .priority-low { border-left-color: #10b981; }
-        
-        .badge {
-            display: inline-flex;
-            align-items: center;
-            padding: 0.25rem 0.75rem;
-            border-radius: 9999px;
-            font-size: 0.75rem;
-            font-weight: 500;
-        }
-        
-        .badge-new { background: #dbeafe; color: #1e40af; }
-        .badge-processing { background: #fef3c7; color: #92400e; }
-        .badge-completed { background: #d1fae5; color: #065f46; }
-        
-        /* 부드러운 페이드인 애니메이션 */
-        .fade-in {
-            opacity: 0;
-            transform: translateY(20px);
-            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
-        }
-        
-        .fade-in.visible {
-            opacity: 1;
-            transform: translateY(0);
-        }
-        
-        /* 헤더 전용 빠른 페이드인 */
-        .header-fade-in {
-            opacity: 0;
-            transform: translateY(-10px);
-            transition: opacity 0.4s ease-out, transform 0.4s ease-out;
-        }
-        
-        .header-fade-in.visible {
-            opacity: 1;
-            transform: translateY(0);
-        }
-        
-        /* 본문 컨텐츠 지연 페이드인 */
+
         .content-fade-in {
             opacity: 0;
-            transform: translateY(30px);
-            transition: opacity 0.8s ease-out, transform 0.8s ease-out;
-            transition-delay: 0.2s;
+            transform: translateY(10px);
+            transition: opacity 0.4s ease-out, transform 0.4s ease-out;
         }
-        
+
         .content-fade-in.visible {
             opacity: 1;
             transform: translateY(0);
         }
-        
+
         /* 사진 미리보기 스타일 */
         .photo-preview {
             max-width: 150px;
@@ -121,18 +69,18 @@
             cursor: pointer;
             transition: transform 0.2s ease;
         }
-        
+
         .photo-preview:hover {
             transform: scale(1.05);
         }
-        
+
         .photo-gallery {
             display: flex;
             gap: 8px;
             flex-wrap: wrap;
             margin-top: 8px;
         }
-        
+
         .photo-modal {
             position: fixed;
             top: 0;
@@ -145,14 +93,14 @@
             align-items: center;
             z-index: 1000;
         }
-        
+
         .photo-modal img {
             max-width: 90%;
             max-height: 90%;
             object-fit: contain;
             border-radius: 8px;
         }
-        
+
         .photo-modal .close-btn {
             position: absolute;
             top: 20px;
@@ -167,7 +115,7 @@
         }
     </style>
 </head>
-<body class="bg-gray-50 min-h-screen">
+<body>
     <!-- 로딩 오버레이 -->
     <div id="loadingOverlay" class="loading-overlay">
         <div class="text-center">
@@ -179,7 +127,7 @@
     <!-- 공통 헤더가 여기에 자동으로 삽입됩니다 -->
 
     <!-- Main Content -->
-    <main class="container mx-auto px-4 py-8 content-fade-in" style="padding-top: 80px;">
+    <main class="container mx-auto px-4 py-8 content-fade-in" style="padding-top: 72px;">
         <!-- 페이지 헤더 -->
         <div class="bg-white rounded-xl shadow-sm p-6 mb-6">
             <div class="flex items-center justify-between mb-4">