feat(admin): support user profile editing, password resetting, and email column with search

- Add UpdateUser API and logics supporting nickname, email, admin flag modification, and password reset.
- Relocate user delete button and confirmation Alert into the EditUserModal.
- Optimize admin Switch change to trigger instant API request with rollback support.
- Fix missing email field in edit form initialization by fetching full profile metadata.
- Render email column in users list and support email-based filtering in UserFilterBar.
- Remove hardcoded styles and sizes from Switch components to follow global theme.

frontend/lib/services/admin/index.ts

@@ -27,6 +27,7 @@ export type {
   ListUsersRequest,
   ListUsersResponse,
   UpdateUserStatusRequest,
+  UpdateUserRequest,
   SystemStatus,
   AppUpdateStatus,
   Schedule,

frontend/lib/services/admin/types.ts

@@ -310,6 +310,8 @@ export interface ListUsersRequest {
   user_id?: string;
   /** 用户名前缀过滤（可选） */
   username?: string;
+  /** 邮箱前缀过滤（可选） */
+  email?: string;
 }
 
 /**
@@ -348,6 +350,20 @@ export interface CreateUserRequest {
   is_admin?: boolean;
 }
 
+/**
+ * 更新用户请求参数
+ */
+export interface UpdateUserRequest {
+  /** 昵称 */
+  nickname?: string;
+  /** 邮箱 */
+  email: string;
+  /** 是否管理员 */
+  is_admin?: boolean;
+  /** 密码（可选重置） */
+  password?: string;
+}
+
 /**
  * 认证源信息
  */

frontend/lib/services/admin/user.service.ts

@@ -5,6 +5,7 @@ import type {
   ListUsersRequest,
   ListUsersResponse,
   UpdateUserStatusRequest,
+  UpdateUserRequest,
 } from './types';
 
 export class AdminUserService extends BaseService {
@@ -29,4 +30,8 @@ export class AdminUserService extends BaseService {
   static async deleteUser(id: string): Promise<void> {
     return this.delete<void>(`/users/${id}`);
   }
+
+  static async updateUser(id: string, request: UpdateUserRequest): Promise<void> {
+    return this.put<void>(`/users/${id}`, request);
+  }
 }