feat(api): generate models for patched products, refunds, site configurations, payments, and user registration

- Added PatchedProduct, PatchedProductImage, PatchedRefund, and related models.
- Introduced Payment, PaymentBody, PaymentCreate, and PaymentRead models.
- Created enums for payment methods, reasons for refunds, roles, and shipping methods.
- Implemented models for site configurations and their opening hours.
- Added ZasilkovnaPacket and ZasilkovnaShipment models for handling shipping data.
- Generated user registration model with validation rules.
- Updated public API functions to support new models and queries.

frontend/src/orval.config.ts

@@ -12,55 +12,63 @@ if (SKIP_ORVAL) {
 }
 
 export default defineConfig({
+  // Public endpoints (all endpoints tagged with "public")
   public: {
     input: { 
       target: `${backendUrl}/api/schema/`,
-
       filters: {
         mode: "include",
         tags: ["public"],
       },
     },
     output: {
-      target: "api/generated/public.ts",
+      target: "api/generated/public/index.ts",
       schemas: "api/generated/public/models",
-
       mode: "tags",
       clean: true,
-
       client: "react-query",
       httpClient: "axios",
-
       override: {
         mutator: {
-          path: "api/publicClient.ts", //IMPORTANTE
+          path: "api/publicClient.ts",
           name: "publicMutator",
         },
+        formUrlEncoded: true,
+        useDates: true,
       },
     },
     hooks: {
       afterAllFilesWrite: 'prettier --write',
     }
   },
+  
+  // All private endpoints (organized by tags, shared models folder)
   private: {
     input: { 
       target: `${backendUrl}/api/schema/`,
+      filters: {
+        mode: "exclude",
+        tags: ["public"],  // Exclude public endpoints, include everything else
+      },
     },
     output: {
-      target: "api/generated/private.ts", //IMPORTANTE
+      target: "api/generated/private",
       schemas: "api/generated/private/models",
-
-      mode: "tags",
+      mode: "tags-split",  // Split by tag into separate files
       clean: true,
-      
       client: "react-query",
       httpClient: "axios",
-
       override: {
         mutator: {
           path: "api/privateClient.ts",
           name: "privateMutator",
         },
+        formUrlEncoded: true,
+        useDates: true,
+        query: {
+          useQuery: true,
+          useInfinite: false,  // Disable infinite queries to avoid page param errors
+        },
       },
     },
     hooks: {