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.

internal/apps/admin/user/errs.go

@@ -6,16 +6,18 @@
 package user
 
 const (
-	userNotFound     = "用户不存在"
-	cannotDisable    = "不能禁用管理员用户"
-	cannotDelete     = "不能删除管理员用户"
-	cannotDeleteSelf = "不能删除当前登录用户"
-	updateUserFailed = "更新用户状态失败"
-	deleteUserFailed = "删除用户失败"
-	usernameExists   = "用户名已存在"
-	usernameRequired = "用户名不能为空"
-	passwordTooShort = "密码长度不能少于 8 位" //nolint:gosec // false positive: this is an error message, not hardcoded credentials
-	createUserFailed = "创建用户失败"
-	emailRequired    = "邮箱不能为空"
-	emailExists      = "邮箱已被注册"
+	userNotFound          = "用户不存在"
+	cannotDisable         = "不能禁用管理员用户"
+	cannotDelete          = "不能删除管理员用户"
+	cannotDeleteSelf      = "不能删除当前登录用户"
+	updateUserFailed      = "更新用户状态失败"
+	deleteUserFailed      = "删除用户失败"
+	usernameExists        = "用户名已存在"
+	usernameRequired      = "用户名不能为空"
+	passwordTooShort      = "密码长度不能少于 8 位" //nolint:gosec // false positive: this is an error message, not hardcoded credentials
+	createUserFailed      = "创建用户失败"
+	emailRequired         = "邮箱不能为空"
+	emailExists           = "邮箱已被注册"
+	cannotRevokeSelfAdmin = "不能撤销当前登录用户的管理员权限"
+	updateUserInfoFailed  = "更新用户信息失败"
 )