feat(role): 新增平台角色管理功能增强

- 权限表增加 available_for_role_types 字段，支持标记权限可用角色类型
- 权限列表和权限树接口支持按 available_for_role_type 过滤
- 新增角色状态切换接口 PUT /api/admin/roles/:id/status
- 角色分配权限时验证权限的可用角色类型
- 完善数据库迁移脚本和单元测试
- 补充数据库迁移相关开发规范文档

internal/service/permission/service.go

@@ -202,6 +202,9 @@ func (s *Service) List(ctx context.Context, req *model.PermissionListRequest) ([
 	if req.Platform != "" {
 		filters["platform"] = req.Platform
 	}
+	if req.AvailableForRoleType != nil {
+		filters["available_for_role_type"] = *req.AvailableForRoleType
+	}
 	if req.ParentID != nil {
 		filters["parent_id"] = *req.ParentID
 	}
@@ -213,35 +216,32 @@ func (s *Service) List(ctx context.Context, req *model.PermissionListRequest) ([
 }
 
 // GetTree 获取权限树
-func (s *Service) GetTree(ctx context.Context) ([]*model.PermissionTreeNode, error) {
-	// 获取所有权限
-	permissions, err := s.permissionStore.GetAll(ctx)
+func (s *Service) GetTree(ctx context.Context, availableForRoleType *int) ([]*model.PermissionTreeNode, error) {
+	permissions, err := s.permissionStore.GetAll(ctx, availableForRoleType)
 	if err != nil {
 		return nil, fmt.Errorf("获取权限列表失败: %w", err)
 	}
 
-	// 构建树结构
 	return buildPermissionTree(permissions), nil
 }
 
 // buildPermissionTree 构建权限树
 func buildPermissionTree(permissions []*model.Permission) []*model.PermissionTreeNode {
-	// 转换为节点映射
 	nodeMap := make(map[uint]*model.PermissionTreeNode)
 	for _, p := range permissions {
 		nodeMap[p.ID] = &model.PermissionTreeNode{
-			ID:       p.ID,
-			PermName: p.PermName,
-			PermCode: p.PermCode,
-			PermType: p.PermType,
-			Platform: p.Platform,
-			URL:      p.URL,
-			Sort:     p.Sort,
-			Children: make([]*model.PermissionTreeNode, 0),
+			ID:                    p.ID,
+			PermName:              p.PermName,
+			PermCode:              p.PermCode,
+			PermType:              p.PermType,
+			Platform:              p.Platform,
+			AvailableForRoleTypes: p.AvailableForRoleTypes,
+			URL:                   p.URL,
+			Sort:                  p.Sort,
+			Children:              make([]*model.PermissionTreeNode, 0),
 		}
 	}
 
-	// 构建树
 	var roots []*model.PermissionTreeNode
 	for _, p := range permissions {
 		node := nodeMap[p.ID]
@@ -250,7 +250,6 @@ func buildPermissionTree(permissions []*model.Permission) []*model.PermissionTre
 		} else if parent, ok := nodeMap[*p.ParentID]; ok {
 			parent.Children = append(parent.Children, node)
 		} else {
-			// 如果找不到父节点，作为根节点处理
 			roots = append(roots, node)
 		}
 	}