refactor: 重构后端目录结构和命名规范

- 将后端目录名从大写改为小写 (Controller->controller 等)
- 将命名空间从 App\ 改为 app\ (符合 webman 官方规范)
- 移除不必要的 bootstrap 目录
- 完善出差审批业务功能：
  - 添加删除草稿功能
  - 添加审批操作功能（同意/拒绝）
  - 完善审批详情页，显示审批人和审批记录
- 前端优化：
  - 调整列表页行高
  - 隐藏底部导航栏
  - 仪表盘只显示3个快捷入口

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

frontend/src/pages/dashboard/index.tsx

@@ -1,6 +1,7 @@
 import { useNavigate } from 'react-router-dom'
 import { useUserStore } from '@/stores/user'
 import { useTranslation } from 'react-i18next'
+import { Toast } from 'antd-mobile'
 import { showLanguageSwitcher } from '@/components/LanguageSwitcher'
 import styles from './dashboard.module.css'
 
@@ -10,40 +11,23 @@ interface QuickAction {
   label: string
   path: string
   color: string
+  description?: string
 }
 
+// 从应用页面迁移的完整应用列表
 const quickActions: QuickAction[] = [
-  { id: '1', icon: '✈️', label: '出差申请', path: '/business-trip/apply', color: '#1677ff' },
-  { id: '2', icon: '📝', label: '采购申请', path: '/purchase/apply', color: '#52c41a' },
-  { id: '3', icon: '🏠', label: '会议室', path: '/meeting-room', color: '#faad14' },
-  { id: '4', icon: '📅', label: '日程管理', path: '/schedule', color: '#722ed1' },
-  { id: '5', icon: '💰', label: '报销申请', path: '/expense/apply', color: '#eb2f96' },
-  { id: '6', icon: '📋', label: '请假申请', path: '/leave/apply', color: '#13c2c2' },
-]
-
-interface TodoItem {
-  id: string
-  title: string
-  type: 'approval' | 'notice' | 'task'
-  time: string
-}
-
-const mockTodos: TodoItem[] = [
-  { id: '1', title: '张三的出差申请待审批', type: 'approval', time: '10分钟前' },
-  { id: '2', title: '本周部门会议', type: 'task', time: '今天 14:00' },
-]
-
-interface StatCard {
-  title: string
-  value: number
-  unit: string
-  color: string
-}
-
-const mockStats: StatCard[] = [
-  { title: '待审批', value: 5, unit: '条', color: '#ff4d4f' },
-  { title: '已审批', value: 12, unit: '条', color: '#52c41a' },
-  { title: '我发起', value: 8, unit: '条', color: '#1677ff' },
+  { id: '1', icon: '✈️', label: '出差申请', path: '/business-trip/apply', color: '#1677ff', description: '提交出差申请' },
+  { id: '2', icon: '📝', label: '采购申请', path: '/purchase/apply', color: '#52c41a', description: '物品采购审批' },
+  { id: '3', icon: '📦', label: '备货录入', path: '/stock/entry', color: '#faad14', description: '备货信息录入' },
+  { id: '4', icon: '📅', label: '日程管理', path: '/schedule', color: '#722ed1', description: '个人日程安排' },
+  { id: '5', icon: '💰', label: '报销申请', path: '/expense/apply', color: '#eb2f96', description: '费用报销审批' },
+  { id: '6', icon: '📋', label: '请假申请', path: '/leave/apply', color: '#13c2c2', description: '请假审批' },
+  { id: '7', icon: '🚗', label: '用车申请', path: '/car/apply', color: '#f759ab', description: '公车使用申请' },
+  { id: '8', icon: '🎁', label: '礼品申请', path: '/gift/apply', color: '#ff7a45', description: '礼品采购申请' },
+  { id: '9', icon: '📊', label: '数据报表', path: '/reports', color: '#1890ff', description: '业务数据统计' },
+  { id: '10', icon: '👥', label: '通讯录', path: '/contacts', color: '#096dd9', description: '内部通讯录' },
+  { id: '11', icon: '📁', label: '文件中心', path: '/files', color: '#595959', description: '文件共享管理' },
+  { id: '12', icon: '⚙️', label: '系统设置', path: '/settings', color: '#8c8c8c', description: '系统偏好设置' },
 ]
 
 export default function Dashboard() {
@@ -52,7 +36,13 @@ export default function Dashboard() {
   const { t } = useTranslation()
 
   const handleQuickAction = (action: QuickAction) => {
-    navigate(action.path)
+    // 允许的应用：出差申请、审批
+    const allowedPaths = ['/business-trip/apply', '/business-trip']
+    if (allowedPaths.includes(action.path)) {
+      navigate(action.path)
+    } else {
+      Toast.show({ content: '功能开发中...', duration: 1500 })
+    }
   }
 
   const getCurrentLanguage = () => {
@@ -83,59 +73,18 @@ export default function Dashboard() {
         </button>
       </div>
 
-      {/* 数据统计卡片 */}
-      <div className={styles.section}>
-        <h3 className={styles.sectionTitle}>数据概览</h3>
-        <div className={styles.statsGrid}>
-          {mockStats.map((stat) => (
-            <div key={stat.title} className={styles.statCard} style={{ borderTop: `3px solid ${stat.color}` }}>
-              <div className={styles.statValue}>{stat.value}</div>
-              <div className={styles.statTitle}>{stat.title}</div>
-            </div>
-          ))}
-        </div>
-      </div>
-
-      {/* 待办事项 */}
-      <div className={styles.section}>
-        <div className={styles.sectionHeader}>
-          <h3 className={styles.sectionTitle}>待办事项</h3>
-          <span className={styles.more}>查看全部 {'>'}</span>
-        </div>
-        {mockTodos.length > 0 ? (
-          <div className={styles.todoList}>
-            {mockTodos.map((todo) => (
-              <div key={todo.id} className={styles.todoItem} onClick={() => navigate('/approval/pending')}>
-                <div className={styles.todoIcon}>
-                  {todo.type === 'approval' && '📋'}
-                  {todo.type === 'notice' && '🔔'}
-                  {todo.type === 'task' && '✓'}
-                </div>
-                <div className={styles.todoContent}>
-                  <div className={styles.todoTitle}>{todo.title}</div>
-                  <div className={styles.todoTime}>{todo.time}</div>
-                </div>
-                <div className={styles.todoArrow}>{'>'}</div>
-              </div>
-            ))}
-          </div>
-        ) : (
-          <div className={styles.empty}>暂无待办事项</div>
-        )}
-      </div>
-
       {/* 快捷入口 */}
       <div className={styles.section}>
         <h3 className={styles.sectionTitle}>快捷入口</h3>
         <div className={styles.actionGrid}>
-          {quickActions.map((action) => (
+          {quickActions.slice(0, 3).map((action) => (
             <div
               key={action.id}
               className={styles.actionCard}
               onClick={() => handleQuickAction(action)}
             >
               <div className={styles.actionIcon} style={{ backgroundColor: `${action.color}15` }}>
-                <span style={{ fontSize: 28 }}>{action.icon}</span>
+                <span style={{ fontSize: 32 }}>{action.icon}</span>
               </div>
               <span className={styles.actionLabel}>{action.label}</span>
             </div>
@@ -143,26 +92,27 @@ export default function Dashboard() {
         </div>
       </div>
 
-      {/* 最新动态 */}
+      {/* 所有应用 */}
       <div className={styles.section}>
-        <div className={styles.sectionHeader}>
-          <h3 className={styles.sectionTitle}>最新动态</h3>
-          <span className={styles.more}>更多 {'>'}</span>
-        </div>
-        <div className={styles.activityList}>
-          <div className={styles.activityItem}>
-            <div className={styles.activityDot}></div>
-            <div className={styles.activityContent}>
-              <div>张三 提交了出差申请</div>
-              <div className={styles.activityTime}>10分钟前</div>
+        <h3 className={styles.sectionTitle}>所有应用</h3>
+        <div className={styles.actionGrid}>
+          <div className={styles.actionCard} onClick={() => navigate('/business-trip')}>
+            <div className={styles.actionIcon} style={{ backgroundColor: '#1677ff15' }}>
+              <span style={{ fontSize: 32 }}>✍️</span>
             </div>
+            <span className={styles.actionLabel}>审批</span>
           </div>
-          <div className={styles.activityItem}>
-            <div className={styles.activityDot}></div>
-            <div className={styles.activityContent}>
-              <div>李四 审批通过了采购申请</div>
-              <div className={styles.activityTime}>1小时前</div>
+          <div className={styles.actionCard} onClick={() => handleQuickAction(quickActions[8])}>
+            <div className={styles.actionIcon} style={{ backgroundColor: `${quickActions[8].color}15` }}>
+              <span style={{ fontSize: 32 }}>{quickActions[8].icon}</span>
             </div>
+            <span className={styles.actionLabel}>{quickActions[8].label}</span>
+          </div>
+          <div className={styles.actionCard} onClick={() => handleQuickAction(quickActions[11])}>
+            <div className={styles.actionIcon} style={{ backgroundColor: `${quickActions[11].color}15` }}>
+              <span style={{ fontSize: 32 }}>{quickActions[11].icon}</span>
+            </div>
+            <span className={styles.actionLabel}>{quickActions[11].label}</span>
           </div>
         </div>
       </div>