feat: 客户亮灯表 + AI 周报摘要 — v0.2

亮灯表:
- 四色覆盖矩阵: 绿亮灯/黄临期/红灭灯/灰未分配
- 按客户经理折叠卡片流, 覆盖率进度条, 团队总览统计
- 红灯客户显示连续未拜访月份, 未分配客户专区
- 后端: light_board.py service + GET /api/dashboard/light-board
- 前端: LightBoard.vue + 路由 /light-board + 汇总侧边栏

AI 周报摘要:
- 接入 OpenAI 兼容大模型, 注入拜访数据+亮灯表覆盖数据
- 四段式结构化输出: 概况/需求/覆盖分析/建议
- 一键生成+Markdown渲染+复制纯文本
- 支局长/分管领导专用, 支持配置内部模型
- 后端: ai_summary.py service + POST /api/ai/summary
- 前端: WeeklyReport 集成按钮+结果面板
- 新增配置: AI_API_URL / AI_API_KEY / AI_MODEL

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

frontend/src/router/index.ts

@@ -38,6 +38,7 @@ const router = createRouter({
       children: [
         { path: '', name: 'Dashboard', component: () => import('@/views/desktop/Dashboard.vue') },
         { path: 'weekly-report', name: 'WeeklyReport', component: () => import('@/views/desktop/WeeklyReport.vue') },
+        { path: 'light-board', name: 'LightBoard', component: () => import('@/views/desktop/LightBoard.vue') },
         { path: 'work-plans', name: 'WorkPlans', component: () => import('@/views/desktop/WorkPlans.vue') },
         { path: 'mini-business', name: 'MiniBusiness', component: () => import('@/views/desktop/MiniBusiness.vue') },
         { path: 'key-visits', name: 'KeyVisits', component: () => import('@/views/desktop/KeyVisits.vue') },