Refactor Admin module by removing role and permission controllers, services, and DTOs; update imports to utilize Roles module for role and permission entities; adjust AdminService and AdminModule accordingly.

src/modules/roles/dto/create-role.dto.ts

@@ -0,0 +1,24 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { IsNotEmpty, IsString, IsArray, IsOptional } from 'class-validator';
+
+export class CreateRoleDto {
+  @ApiProperty({ description: 'Role name' })
+  @IsNotEmpty()
+  @IsString()
+  name!: string;
+
+  @ApiProperty({ description: 'Role title' })
+  @IsNotEmpty()
+  @IsString()
+  title!: string;
+
+  @ApiProperty({ description: 'Restaurant id (optional)', required: false })
+  @IsOptional()
+  @IsString()
+  restId?: string;
+
+  @ApiProperty({ description: 'List of permission IDs', isArray: true, required: false })
+  @IsOptional()
+  @IsArray()
+  permissionIds?: string[];
+}