R59 A1-A6：极简考勤打卡

- 新增 AttendanceRecord 与 AttendancePolicy 模型
- 上下班打卡、今日状态、月度统计端点
- 考勤管理页面（我的/团队/设置三 Tab）
- 移动端快速打卡入口
- 管理员补卡与审计日志
- 单测覆盖打卡幂等、迟到计算、工时计算、权限边界

server/src/app.js

@@ -56,6 +56,7 @@ const migrationRunsRoutes = require("./routes/migrationRuns");
 const cutoverRoutes = require("./routes/cutover");
 const systemWorkspaceRoutes = require("./routes/systemWorkspace");
 const presenceRoutes = require("./routes/presence");
+const attendanceRoutes = require("./routes/attendance");
 const weeklyReportsRoutes = require("./routes/weeklyReports");
 const todosRoutes = require("./routes/todos");
 const projectsRoutes = require("./routes/projects");
@@ -345,6 +346,7 @@ async function buildApp() {
   await app.register(cutoverRoutes, { prefix: "/api" });
   await app.register(systemWorkspaceRoutes, { prefix: "/api" });
   await app.register(presenceRoutes, { prefix: "/api" });
+  await app.register(attendanceRoutes, { prefix: "/api" });
   await app.register(weeklyReportsRoutes, { prefix: "/api" });
   await app.register(todosRoutes, { prefix: "/api" });
   await app.register(projectsRoutes, { prefix: "/api" });