feat(cashflow): 现金流量表结构分析——三大活动净额八类企业定性判定 (P1)

- 后端: cashflow_structure.py 模块 (GET rules/periods/values/analysis + POST values upsert)
- 判定: O/I/F 三净额符号 → 8类企业定性 (CMA P2 现金流量表分析, 无'现金流肖像'字样)
- 数据: cash_flow_structure_values 表 (entity_id+period 唯一), 官方现金流量表净额按期间注入
- 前端: CashFlowStructure.vue 判定横幅/瀑布图/规则表/入库记录 + MyDialog 录入弹窗
- 菜单: 财务报表分析 → 现金流量表分析 (路由 /cashflow-structure, 角色 ceo/finance/it)
- 测试: tests/test_cashflow_structure.py 7 条通过 (规则8类/判定/覆盖/博海边界6-7/非法期间)

frontend/src/router/index.ts

@@ -35,6 +35,7 @@ const routes = [
       { path: 'reports', name: 'ReportCenter', component: () => import('@/views/ReportCenter.vue'), meta: { title: '管理报表', roles: ['ceo', 'finance', 'business'] } },
       { path: 'alignment', name: 'KPIAlignment', component: () => import('@/views/KPIAlignment.vue'), meta: { title: '战略执行看板', roles: ['ceo', 'finance', 'business', 'it'], editable: true } },
       { path: 'dupont-analysis', name: 'DupontAnalysis', component: () => import('@/views/DupontAnalysis.vue'), meta: { title: '杜邦分析', roles: ['ceo', 'finance', 'it'] } },
+      { path: 'cashflow-structure', name: 'CashFlowStructure', component: () => import('@/views/CashFlowStructure.vue'), meta: { title: '现金流量表结构分析', roles: ['ceo', 'finance', 'it'] } },
       { path: 'data-quality', name: 'DataQuality', component: () => import('@/views/DataQuality.vue'), meta: { title: '数据质量', roles: ['ceo', 'finance', 'it'] } },
       { path: 'bi-reports', name: 'BiReports', component: () => import('@/views/BIReportCenter.vue'), meta: { title: 'BI报表', roles: ['ceo', 'finance', 'business'] } },
       { path: 'okr-templates', name: 'OKRTemplates', component: () => import('@/views/OKRTemplates.vue'), meta: { title: 'OKR模板库', roles: ['ceo', 'finance', 'it'], editable: true } },