fix(web): 统一UI规范并移除多余菜单

1. 从 /admin 侧边栏彻底移除了多余的“站点管理”导航项和对应的引导页，统一仅在 /route 中维护。
2. 修复了 ticket-route.js 中添加、编辑、删除站点后列表不同步的问题，通过补充 await fetchData() 实现实时更新。
3. 更新 style.css 将所有 button 和 .btn 的 border-radius 设置为 0 !important，统一取消所有按钮圆角。

web/index.html

@@ -7,7 +7,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>控制台|FSE铁路运输票务系统</title>
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
-    <link rel="stylesheet" href="style.css?v=14">
+    <link rel="stylesheet" href="style.css?v=20">
     <script src="https://unpkg.com/vue@3/dist/vue.global.prod.js"></script>
     <script src="/socket.io/socket.io.js"></script>
 </head>
@@ -77,10 +77,6 @@
                             @click="currentView = 'vouchers'">
                             <span class="nav-icon"><i class="fas fa-receipt"></i></span> 凭证记录
                         </div>
-                        <div class="nav-item" :class="{active: currentView === 'stations'}"
-                            @click="currentView = 'stations'">
-                            <span class="nav-icon"><i class="fas fa-map-marker-alt"></i></span> 站点管理
-                        </div>
                         <div class="nav-item" :class="{active: currentView === 'iccards'}"
                             @click="currentView = 'iccards'">
                             <span class="nav-icon"><i class="fas fa-credit-card"></i></span> IC卡管理
@@ -571,17 +567,7 @@
                             </div>
                         </div>
 
-                        <!-- 站点管理迁移引导 -->
-                <div v-if="currentView === 'stations'">
-                    <div class="card mb-4" style="text-align: center; padding: 60px 20px;">
-                        <i class="fas fa-map-marker-alt" style="font-size: 48px; color: var(--muted); margin-bottom: 20px; display: block;"></i>
-                        <h3 style="margin-bottom: 12px;">站点与线路管理已迁移</h3>
-                        <p class="text-muted" style="margin-bottom: 24px;">为了提供更专业的线路拓扑编辑和站点全局管理体验，该功能已被迁移至独立的「线路规划后台」。</p>
-                        <a href="/route" class="btn primary" style="text-decoration: none; display: inline-flex; align-items: center; gap: 8px;">
-                            前往 线路规划系统 <i class="fas fa-arrow-right"></i>
-                        </a>
-                    </div>
-                </div>
+                        <!-- 站点管理迁移引导 移除 -->
 
                 <div v-if="currentView === 'iccards'">
 

web/style.css

@@ -255,7 +255,7 @@ button, .btn {
     align-items: center;
     justify-content: center;
     padding: 8px 16px;
-    border-radius: 0;
+    border-radius: 0 !important;
     border: 1px solid var(--border);
     background-color: transparent;
     color: var(--text);

web/ticket-route.html

@@ -8,7 +8,7 @@
     <title>线路规划|FSE铁路运输票务系统</title>
     <link rel="icon" type="image/png" href="/FSE-ticket.png">
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
-    <link rel="stylesheet" href="/style.css?v=19">
+    <link rel="stylesheet" href="/style.css?v=20">
     <script src="https://unpkg.com/vue@3/dist/vue.global.prod.js"></script>
     <script src="/socket.io/socket.io.js"></script>
 </head>

web/ticket-route.js

@@ -649,6 +649,7 @@ createApp({
             })) return;
             await runMutation(async () => {
                 await requestJson(`/api/stations/${encodeURIComponent(code)}`, { method: 'DELETE' }, { expectOk: true });
+                await fetchData();
             });
         };
 
@@ -712,7 +713,10 @@ createApp({
                 }
                 
                 Object.assign(newStation, { code: '', name: '', en_name: '' });
+                if (currentView.value === 'stations') {
                     showAddStation.value = false;
+                }
+                await fetchData();
             });
         };
 
@@ -775,6 +779,7 @@ createApp({
             await runMutation(async () => {
                 await requestJson(`/api/stations/${encodeURIComponent(oldCode)}`, { method: 'PUT', headers: {'Content-Type': 'application/json'}, body: JSON.stringify(payload) }, { expectOk: true });
                 showStationModal.value = false;
+                await fetchData();
             });
         };