refactor(server): domain/infra (#1298)

* refactor: user repository

* refactor: user module

* refactor: move database into infra

* refactor(cli): use user core

* chore: import path

* chore: tests

server/libs/domain/src/user/dto/user-count.dto.ts

@@ -0,0 +1,12 @@
+import { Transform } from 'class-transformer';
+import { IsBoolean, IsOptional } from 'class-validator';
+
+export class UserCountDto {
+  @IsBoolean()
+  @IsOptional()
+  @Transform(({ value }) => value === 'true')
+  /**
+   * When true, return the number of admins accounts
+   */
+  admin?: boolean = false;
+}