Refactor employee management

AGENTS.md

@@ -21,6 +21,8 @@ No test or lint commands are currently configured. When adding tests, use Vitest
 This is a React 19 + TypeScript frontend for the Zhejiang Beifan Trace Management Platform (溯源管理平台). It provides:
 - Public query interface for serial number verification
 - Admin dashboard for QR code generation and company management
+- Employee management with automatic employee serial generation
+- Aftersales work-order management for admins and technicians
 - User authentication and profile management
 
 **Tech Stack**: React 19, TypeScript, Vite 7, Ant Design 6, React Router v7, Axios
@@ -90,7 +92,8 @@ src/
   - `dashboardApi` - Dashboard statistics
   - `employeeSerialApi` - Employee serial management
   - `aftersalesApi` - Aftersales work orders (admin + public)
-  - `usersApi` - User management (admin only); also exposes `assignable` for technician/admin picker
+  - `employeesApi` - Employee management (admin only): create/list/update/delete/reset password
+  - `usersApi` - Assignable technician/admin picker via `assignable`
 - Auth token automatically added via axios interceptor
 - All API calls return typed responses based on `src/types/index.ts`
 
@@ -103,6 +106,18 @@ src/
 - Public routes (no auth): `/login`, `/query`, `/aftersales/:serialNumber`
 - `PublicQuery` auto-redirects scanned `zjbf-sh-*` serials to `/aftersales/:serialNumber`
 - Shared public-page chrome (logo + 备案 footer) lives in `components/PublicLayout.tsx`
+- `/admin/employee-serials` is the employee management page despite the legacy route name.
+- Technicians should only see/use the aftersales module; admins see all admin menu items.
+
+### Roles and Employee Management
+- `UserRole` is limited to `admin` / `technician` / `employee`.
+- `admin`: full backend access.
+- `technician`: work-order module access only.
+- `employee`: no backend login access.
+- Employee creation fields are name, phone, employee number, position, and role.
+- Password field is shown and required only for `admin` and `technician`.
+- Employee creation uses `employeesApi.create`, and the backend automatically creates the employee serial; do not implement a separate "create then assign code" primary flow.
+- Employee rows should display generated `employeeSerials` from the employee list response.
 
 ### Aftersales Conventions
 - Aftersales serial format is `zjbf-sh-YYMMDDNN` (daily sequence), e.g. `zjbf-sh-26052801`.