feat: 实现需求管理、加班记录、成员/角色管理模块

- 需求模块：完整 CRUD、状态流转（采纳/拒绝/关闭）、详情抽屉、产品→项目级联选择
- 加班记录：产品→项目→版本三级联动、月份筛选（MonthPicker）、CSV 导出
- 成员管理：左右布局（部门树+成员列表）、手机号脱敏、初始密码自动生成及规则设置
- 角色管理：卡片列表、系统角色保护、CRUD
- 通用组件：FilterSelect 下拉、MonthPicker 月份选择器、Pagination 分页
- 样式统一：状态标签加 border、日期输入现代化、筛选组件风格一致

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/web/lib/members.ts

@@ -0,0 +1,65 @@
+export interface Department {
+  id: string;
+  name: string;
+  parentId?: string;
+  order: number;
+  createdAt: string;
+}
+
+export interface Member {
+  id: string;
+  name: string;
+  departmentId: string;
+  roleId: string;
+  phone: string;
+  email: string;
+  password: string;
+  createdAt: string;
+}
+
+export interface RoleItem {
+  id: string;
+  name: string;
+  description?: string;
+  createdAt: string;
+  isSystem?: boolean;
+}
+
+export interface PasswordRule {
+  prefix: string;
+  length: number;
+  includeUppercase: boolean;
+  includeLowercase: boolean;
+  includeNumbers: boolean;
+  includeSpecial: boolean;
+}
+
+export const DEFAULT_PASSWORD_RULE: PasswordRule = {
+  prefix: 'Ftb',
+  length: 8,
+  includeUppercase: true,
+  includeLowercase: true,
+  includeNumbers: true,
+  includeSpecial: false,
+};
+
+export function generatePassword(rule: PasswordRule): string {
+  let chars = '';
+  if (rule.includeUppercase) chars += 'ABCDEFGHJKLMNPQRSTUVWXYZ';
+  if (rule.includeLowercase) chars += 'abcdefghjkmnpqrstuvwxyz';
+  if (rule.includeNumbers) chars += '23456789';
+  if (rule.includeSpecial) chars += '!@#$%&*';
+  if (!chars) chars = 'abcdefghjkmnpqrstuvwxyz23456789';
+
+  const randomLength = Math.max(rule.length - rule.prefix.length, 4);
+  let result = rule.prefix;
+  for (let i = 0; i < randomLength; i++) {
+    result += chars[Math.floor(Math.random() * chars.length)];
+  }
+  return result;
+}
+
+export function maskPhone(phone: string): string {
+  if (!phone || phone.length < 7) return phone;
+  return phone.slice(0, 3) + '****' + phone.slice(7);
+}