feat(server): add UpdateUserMembershipDto for admin member card management

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/server/src/user/dto/update-user-membership.dto.ts

@@ -0,0 +1,17 @@
+import { IsDateString, IsInt, IsOptional, IsUUID, Min } from 'class-validator'
+
+export class UpdateUserMembershipDto {
+  @IsUUID()
+  cardTypeId: string
+
+  @IsOptional()
+  @IsInt()
+  @Min(0)
+  remainingTimes?: number | null
+
+  @IsDateString()
+  startDate: string
+
+  @IsDateString()
+  expireDate: string
+}