refactor(server): feature flags (#9492)

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

@@ -1,6 +1,5 @@
 import { ApiProperty, ApiResponseProperty } from '@nestjs/swagger';
 import type { DateTime } from 'luxon';
-import { FeatureFlags } from 'src/cores/system-config.core';
 import { SystemConfigThemeDto } from 'src/dtos/system-config.dto';
 import { IVersion, VersionType } from 'src/utils/version';
 
@@ -96,7 +95,7 @@ export class ServerConfigDto {
   externalDomain!: string;
 }
 
-export class ServerFeaturesDto implements FeatureFlags {
+export class ServerFeaturesDto {
   smartSearch!: boolean;
   configFile!: boolean;
   facialRecognition!: boolean;