feat: 全系统优化 — 并发控制 + 冗余清理 + 数据流修复 + 全面测试

核心修复:
- 状态机加 SELECT FOR UPDATE 行锁，消除并发竞态
- hss_md_staff 加 role 列，登录从数据库读取真实角色
- 申请重复校验排除自身，全流程 20 步闭环通过
- 派单 SQL 修复 + 支付状态机过渡 + 完成服务 plan_item_id 修复

并发控制新增:
- RedisLockService (SET NX PX + Lua 安全解锁)
- RateLimiterService (Redis 滑动窗口 + API 拦截器)
- TransactionIsolationConfig (SERIALIZABLE for 支付回调)
- MqttPublisher (异步队列 + JDK TCP 探测)
- ObjectStorageService (AWS SigV4 预签名, 纯 JDK)

冗余清理:
- 删除 6 个死代码文件 (~620 行)
- hutool-all → JDK MessageDigest, 去 MapStruct, 去 jsr310
- haversine 提取到 GeoUtil, count/round 提取到 JdbcUtil
- 创建 platform layout 组件

前端修复:
- 登录页移除角色选择器, 由后端 JWT 返回
- 移除 ClientOnly 包裹, 页面正常渲染
- SPA fallback Nginx 配置修复

Docker: 运行时镜像 eclipse-temurin:17-jre-jammy (缩小 ~300MB)

文档: 新增系统实现与修复报告.md

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

hss-home-service/delivery-miniapp/pages/delivery/messages/messages.vue

@@ -0,0 +1,34 @@
+<template>
+  <view class="page">
+    <text class="title">消息通知</text>
+    <view v-for="m in messages" :key="m.id" class="msg-card" @click="markRead(m.id)">
+      <text class="event">{{ eventMap[m.event_type] || m.event_type }}</text>
+      <text class="time">{{ m.created_at?.substring(0,16) || '' }}</text>
+    </view>
+    <view v-if="messages.length === 0" class="empty">暂无消息</view>
+  </view>
+</template>
+
+<script>
+import { apiGet, apiPost } from '@/common/api.js';
+
+export default {
+  data() { return { messages: [], eventMap: {
+    work_order_assigned: '新工单已派单', work_order_completed: '工单已完成', work_order_exception: '工单异常',
+    application_submitted: '申请已提交', plan_pending_sign: '方案待签署', settlement_paid: '结算已支付'
+  }}},
+  async onShow() { try { const res = await apiGet('/delivery/messages'); this.messages = res.data?.data || []; } catch(e) {} },
+  methods: {
+    async markRead(id) { try { await apiPost('/delivery/messages/' + id + '/read'); } catch(e) {} }
+  }
+};
+</script>
+
+<style>
+.page { padding: 24rpx; background: #F8F8F8; min-height: 100vh; }
+.title { font-size: 36rpx; font-weight: 700; display: block; margin-bottom: 24rpx; }
+.msg-card { background: #fff; border-radius: 16rpx; padding: 24rpx; margin-bottom: 12rpx; display: flex; justify-content: space-between; }
+.event { font-size: 28rpx; font-weight: 500; }
+.time { font-size: 24rpx; color: #999; }
+.empty { text-align: center; padding: 100rpx; color: #999; }
+</style>