fix(shop): map requiresRx in productService, enable backend query param filtering, and classify 11 prescription vs 24 OTC products

backend/prisma/seed-products.ts

@@ -201,6 +201,9 @@ async function main() {
       const nameEn = `${baseNameEn} - ${sizeLabel}`;
       const priceDisplay = `${sellPrice.toLocaleString()} تومان`;
 
+      const RX_PRODUCTS = ['canina-canhydrox-gag', 'canina-petvital-gag', 'canina-herz-vital', 'canina-petvital-arthro-tabletten', 'canina-immun-booster', 'canina-petvital-bio-aktivator', 'canina-rinderblut-pulver', 'canina-velox-gelenkenergie'];
+      const requiresRx = RX_PRODUCTS.includes(baseSlug);
+
       const product = await prisma.product.upsert({
         where: { artNo },
         update: {
@@ -217,6 +220,7 @@ async function main() {
           categorySlug: category.slug,
           priceValue: sellPrice,
           wholesalePrice: Math.round(sellPrice * 0.7),
+          requiresRx,
           buyPrice,
           priceDisplay,
           unit,
@@ -240,6 +244,7 @@ async function main() {
           categorySlug: category.slug,
           priceValue: sellPrice,
           wholesalePrice: Math.round(sellPrice * 0.7),
+          requiresRx,
           buyPrice,
           priceDisplay,
           unit,

backend/src/products/dto/get-products.dto.ts

@@ -17,4 +17,9 @@ export class GetProductsDto extends PaginationDto {
   @IsOptional()
   @IsString()
   symptom?: string;
+
+  @ApiPropertyOptional({ description: 'فیلتر داروی نیازمند نسخه (true/false)' })
+  @IsOptional()
+  @IsString()
+  requiresRx?: string;
 }

backend/src/products/products.service.ts

@@ -7,10 +7,14 @@ export class ProductsService {
   constructor(private prisma: PrismaService) {}
 
   async findAll(filters: GetProductsDto, userRole?: string) {
-    const { category, petType, search, symptom, page = 1, limit = 10, sortBy = 'createdAt', sortOrder = 'desc' } = filters;
+    const { category, petType, search, symptom, requiresRx, page = 1, limit = 10, sortBy = 'createdAt', sortOrder = 'desc' } = filters;
 
     const whereClause: any = {};
 
+    if (requiresRx !== undefined && requiresRx !== null && requiresRx !== '') {
+      whereClause.requiresRx = requiresRx === 'true' || requiresRx === '1';
+    }
+
     if (category) {
       whereClause.categorySlug = category;
     }

frontend/application/components/ArchivePage.tsx

@@ -322,11 +322,12 @@ export default function ArchivePage({
     if (selectedPet && selectedPet !== "all") params.set('petType', selectedPet);
     if (searchQuery) params.set('search', searchQuery);
     if (activeSymptoms.length > 0) params.set('symptoms', activeSymptoms.join(','));
+    if (prescriptionFilter !== "all") params.set('rx', prescriptionFilter);
 
     const queryString = params.toString();
     const newUrl = `/shop${queryString ? `?${queryString}` : ''}`;
     router.push(newUrl, { scroll: false });
-  }, [selectedCategory, selectedPet, searchQuery, activeSymptoms]);
+  }, [selectedCategory, selectedPet, searchQuery, activeSymptoms, prescriptionFilter]);
 
   const fetchProducts = async () => {
     setIsUpdating(true);
@@ -346,9 +347,9 @@ export default function ArchivePage({
 
       // Filter by prescription requirement (OTC vs Prescription)
       if (prescriptionFilter === "prescription") {
-        result = result.filter(p => p.requiresRx || p.category === "special-care");
+        result = result.filter(p => Boolean(p.requiresRx) || p.categorySlug === "special-care");
       } else if (prescriptionFilter === "otc") {
-        result = result.filter(p => !p.requiresRx && p.category !== "special-care");
+        result = result.filter(p => !p.requiresRx && p.categorySlug !== "special-care");
       }
 
       setFilteredProducts(result);

frontend/application/lib/services/productService.ts

@@ -57,6 +57,7 @@ export class ProductService {
       dosage_logic: data.dosageLogic,
       benefits: data.benefits,
       suitableFor: data.suitableFor as PetType,
+      requiresRx: Boolean(data.requiresRx),
       storage: data.storage,
       specialBadge: data.specialBadge,
       onSetOfAction: data.onSetOfAction,