feat: add Bed and Locker DTOs

apps/server/src/rooms/dto/bed.dto.ts

@@ -0,0 +1,34 @@
+import { IsString, IsOptional, IsInt, Min, IsEnum, IsArray, ArrayMinSize } from 'class-validator';
+
+export class CreateBedDto {
+  @IsString()
+  bedNumber: string;
+
+  @IsOptional()
+  @IsString()
+  status?: string;
+
+  @IsOptional()
+  @IsString()
+  notes?: string;
+}
+
+export class UpdateBedDto {
+  @IsOptional()
+  @IsString()
+  bedNumber?: string;
+
+  @IsOptional()
+  @IsEnum(['available', 'occupied', 'maintenance'])
+  status?: string;
+
+  @IsOptional()
+  @IsString()
+  notes?: string;
+}
+
+export class BatchCreateBedDto {
+  @IsInt()
+  @Min(1)
+  count: number;
+}

apps/server/src/rooms/dto/locker.dto.ts

@@ -0,0 +1,34 @@
+import { IsString, IsOptional, IsInt, Min, IsEnum } from 'class-validator';
+
+export class CreateLockerDto {
+  @IsString()
+  lockerNumber: string;
+
+  @IsOptional()
+  @IsString()
+  status?: string;
+
+  @IsOptional()
+  @IsString()
+  notes?: string;
+}
+
+export class UpdateLockerDto {
+  @IsOptional()
+  @IsString()
+  lockerNumber?: string;
+
+  @IsOptional()
+  @IsEnum(['available', 'occupied', 'maintenance'])
+  status?: string;
+
+  @IsOptional()
+  @IsString()
+  notes?: string;
+}
+
+export class BatchCreateLockerDto {
+  @IsInt()
+  @Min(1)
+  count: number;
+}