feat: 移动端新增修改密码功能

1. 新增修改密码页面 (my/ChangePassword.vue)
   - 支持输入旧密码、新密码、确认密码
   - 密码验证：至少6位、两次输入一致性校验
   - 修改成功后自动清除登录信息并跳转到登录页

2. 新增API接口 (updatePassword)
   - PUT /sys/profile/password
   - 参数: oldPassword, newPassword, confirmPassword

3. 更新路由配置
   - 新增 /my/change-password 路由

4. 更新我的页面
   - 修改密码点击跳转到修改密码页面

fund-mobile/src/api/index.ts

@@ -14,6 +14,10 @@ export function logout() {
   return request.post('/auth/logout')
 }
 
+export function updatePassword(data: { oldPassword: string; newPassword: string; confirmPassword: string }) {
+  return request.put('/sys/profile/password', data)
+}
+
 // ===================== 项目管理 =====================
 
 export function getProjectList(params?: { pageNum: number; pageSize: number; keyword?: string }) {

fund-mobile/src/router/index.ts

@@ -82,6 +82,12 @@ const router = createRouter({
       component: () => import('@/views/my/Index.vue'),
       meta: { title: '我的', requiresAuth: true }
     },
+    {
+      path: '/my/change-password',
+      name: 'ChangePassword',
+      component: () => import('@/views/my/ChangePassword.vue'),
+      meta: { title: '修改密码', requiresAuth: true }
+    },
     // 登录
     {
       path: '/login',

fund-mobile/src/views/my/ChangePassword.vue

@@ -0,0 +1,145 @@
+<template>
+  <div class="page change-password">
+    <van-nav-bar title="修改密码" left-arrow @click-left="$router.back()" />
+    
+    <van-form @submit="onSubmit">
+      <van-cell-group inset>
+        <van-field
+          v-model="form.oldPassword"
+          type="password"
+          name="oldPassword"
+          label="旧密码"
+          placeholder="请输入旧密码"
+          :rules="[{ required: true, message: '请输入旧密码' }]"
+          required
+        />
+        
+        <van-field
+          v-model="form.newPassword"
+          type="password"
+          name="newPassword"
+          label="新密码"
+          placeholder="请输入新密码（至少6位）"
+          :rules="[
+            { required: true, message: '请输入新密码' },
+            { pattern: /^.{6,}$/, message: '密码至少6位' }
+          ]"
+          required
+        />
+        
+        <van-field
+          v-model="form.confirmPassword"
+          type="password"
+          name="confirmPassword"
+          label="确认密码"
+          placeholder="请再次输入新密码"
+          :rules="[
+            { required: true, message: '请确认新密码' },
+            { validator: validateConfirmPassword, message: '两次密码输入不一致' }
+          ]"
+          required
+        />
+      </van-cell-group>
+      
+      <div class="tips">
+        <van-icon name="info-o" />
+        <span>密码修改成功后需要重新登录</span>
+      </div>
+      
+      <div class="submit-btn">
+        <van-button round block type="primary" native-type="submit" :loading="submitting">
+          确认修改
+        </van-button>
+      </div>
+    </van-form>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref } from 'vue'
+import { useRouter } from 'vue-router'
+import { showToast, showSuccessToast, showConfirmDialog } from 'vant'
+import { updatePassword } from '@/api'
+
+const router = useRouter()
+const submitting = ref(false)
+
+const form = ref({
+  oldPassword: '',
+  newPassword: '',
+  confirmPassword: ''
+})
+
+const validateConfirmPassword = () => {
+  return form.value.confirmPassword === form.value.newPassword
+}
+
+const onSubmit = async () => {
+  if (form.value.newPassword !== form.value.confirmPassword) {
+    showToast('两次密码输入不一致')
+    return
+  }
+  
+  if (form.value.oldPassword === form.value.newPassword) {
+    showToast('新密码不能与旧密码相同')
+    return
+  }
+  
+  try {
+    await showConfirmDialog({
+      title: '确认修改',
+      message: '密码修改成功后需要重新登录，确定要修改吗？'
+    })
+    
+    submitting.value = true
+    
+    await updatePassword({
+      oldPassword: form.value.oldPassword,
+      newPassword: form.value.newPassword,
+      confirmPassword: form.value.confirmPassword
+    })
+    
+    showSuccessToast('密码修改成功')
+    
+    // 清除登录信息
+    localStorage.removeItem('token')
+    localStorage.removeItem('userInfo')
+    
+    // 跳转到登录页
+    setTimeout(() => {
+      router.replace('/login')
+    }, 1500)
+    
+  } catch (e: any) {
+    if (e.message !== 'cancel') {
+      showToast(e.message || '修改失败')
+    }
+  } finally {
+    submitting.value = false
+  }
+}
+</script>
+
+<style scoped>
+.change-password {
+  background: #f5f5f5;
+  min-height: 100vh;
+}
+
+.van-cell-group {
+  margin: 12px;
+}
+
+.tips {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  margin: 16px 20px;
+  font-size: 12px;
+  color: var(--mac-text-secondary);
+}
+
+.submit-btn {
+  margin: 24px 16px;
+}
+</style>

fund-mobile/src/views/my/Index.vue

@@ -55,7 +55,7 @@ const userInfo = ref({
 })
 
 const handleChangePassword = () => {
-  showToast('功能开发中')
+  router.push('/my/change-password')
 }
 
 const handleAbout = () => {