feat: add salePrice field to Product model and update related files

- Added salePrice field to Product model in Prisma schema and generated files.
- Updated Product scalar field enums in both TypeScript files.
- Modified aggregate output types to include salePrice.
- Enhanced input types for creating and updating products to support salePrice.
- Updated migration file to add salePrice column to Products table.
- Created DTOs for inventory management in POS module.
- Implemented POS controller and service with methods for stock and product categories.

src/pos/pos.controller.ts

@@ -0,0 +1,67 @@
+import { Controller, Get } from '@nestjs/common'
+import { PosService } from './pos.service'
+
+@Controller('pos')
+export class PosController {
+  constructor(private readonly posService: PosService) {}
+
+  @Get()
+  getInfo() {
+    return this.posService.getInfo()
+  }
+
+  @Get('/stock')
+  async getStock() {
+    const inventoryId = await this.posService.getDefaultInventoryId()
+    return this.posService.getStock(inventoryId!)
+  }
+
+  @Get('/product-categories')
+  async getProductCategories() {
+    const inventoryId = await this.posService.getDefaultInventoryId()
+    return this.posService.getProductCategories(inventoryId!)
+  }
+
+  // @Post()
+  // create(@Body() dto: CreateInventoryDto) {
+  //   return this.inventoriesService.create(dto)
+  // }
+
+  // @Get()
+  // @ApiQuery({ name: 'isPointOfSale', required: false, type: Boolean })
+  // findAll(@Query('isPointOfSale') isPointOfSale?: boolean) {
+  //   return this.inventoriesService.findAll(isPointOfSale)
+  // }
+
+  // @Get(':id')
+  // findOne(@Param('id') id: string) {
+  //   return this.inventoriesService.findOne(Number(id))
+  // }
+
+  // @Patch(':id')
+  // update(@Param('id') id: string, @Body() dto: UpdateInventoryDto) {
+  //   return this.inventoriesService.update(Number(id), dto)
+  // }
+
+  // @Delete(':id')
+  // remove(@Param('id') id: string) {
+  //   return this.inventoriesService.remove(Number(id))
+  // }
+
+  // @Get(':id/movements')
+  // @ApiQuery({ name: 'type', required: false, enum: MovementType })
+  // findInventoryMovements(@Param('id') id: string, @Query('type') type?: MovementType) {
+  //   return this.inventoriesService.findInventoryMovements(Number(id), type ?? undefined)
+  // }
+
+  // @Get(':id/stock')
+  // @ApiQuery({ name: 'isAvailable', required: false, type: Boolean })
+  // getStock(@Param('id') id: string, @Query('isAvailable') isAvailable?: boolean) {
+  //   return this.inventoriesService.getStock(Number(id), isAvailable ?? undefined)
+  // }
+
+  // @Get(':id/products/:productId/cardex')
+  // getProductCardex(@Param('id') id: string, @Param('productId') productId: string) {
+  //   return this.inventoriesService.getProductCardex(Number(id), Number(productId))
+  // }
+}