feat: add rental_category/rate to Room, rental_type/tenant_id to Occupancy, tenant_id to Student

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

@@ -1,4 +1,4 @@
-import { IsString, IsOptional, IsInt, IsEnum, Min } from 'class-validator';
+import { IsString, IsOptional, IsInt, IsEnum, Min, IsNumber } from 'class-validator';
 
 export class CreateRoomDto {
   @IsString()
@@ -19,6 +19,14 @@ export class CreateRoomDto {
   @IsOptional()
   @IsString()
   roomType?: string;
+
+  @IsOptional()
+  @IsString()
+  rentalCategory?: string;
+
+  @IsOptional()
+  @IsNumber()
+  monthlyRate?: number;
 }
 
 export class UpdateRoomDto {
@@ -50,4 +58,12 @@ export class UpdateRoomDto {
   @IsOptional()
   @IsEnum(['available', 'full', 'maintenance'])
   status?: string;
+
+  @IsOptional()
+  @IsString()
+  rentalCategory?: string;
+
+  @IsOptional()
+  @IsNumber()
+  monthlyRate?: number;
 }