feat(web,server): external domain setting (#6146)

* feat: external domain setting

* chore: open api

* mobile: handle serverconfig-externalDomain

---------

Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>

server/src/domain/server-info/server-info.dto.ts

@@ -86,6 +86,7 @@ export class ServerConfigDto {
   @ApiProperty({ type: 'integer' })
   trashDays!: number;
   isInitialized!: boolean;
+  externalDomain!: string;
 }
 
 export class ServerFeaturesDto implements FeatureFlags {

server/src/domain/server-info/server-info.service.spec.ts

@@ -184,6 +184,7 @@ describe(ServerInfoService.name, () => {
         loginPageMessage: '',
         oauthButtonText: 'Login with OAuth',
         trashDays: 30,
+        externalDomain: '',
       });
       expect(configMock.load).toHaveBeenCalled();
     });

server/src/domain/server-info/server-info.service.ts

@@ -89,6 +89,7 @@ export class ServerInfoService {
       trashDays: config.trash.days,
       oauthButtonText: config.oauth.buttonText,
       isInitialized,
+      externalDomain: config.server.externalDomain,
     };
   }