feat(system): 完成客户端自定义与系统设置

新增管理端客户端自定义标签页、公开与管理端系统设置接口、文件存储设置持久化、数据库迁移、契约类型和 OpenAPI 文档。

packages/contracts/src/index.ts

@@ -933,6 +933,20 @@ export interface FileStorageSettingsUpdateRequest {
   resultUploadPolicy: 'default' | 'upload_all' | 'upload_none' | string;
 }
 
+export interface ClientCustomizationSettings {
+  clientName: string;
+  clientEnglishName: string;
+  platformName: string;
+  iconPath: string;
+}
+
+export interface ClientCustomizationSettingsUpdateRequest {
+  clientName?: string;
+  clientEnglishName?: string;
+  platformName?: string;
+  iconPath?: string;
+}
+
 export interface GatewayTask {
   id: string;
   kind: string;