integrate barcode scan with openfoodfacts and meal type selection

apps/mobile/src/api/food.ts

@@ -0,0 +1,35 @@
+import { apiClient, withAuth } from "./client";
+import { API_ENDPOINTS } from "../config/api";
+
+export interface ScannedFoodProduct {
+  barcode: string;
+  name: string;
+  brand: string | null;
+  imageUrl: string | null;
+  servingSize: string;
+  caloriesPerServing: number;
+  macros: {
+    protein: number | null;
+    carbs: number | null;
+    fat: number | null;
+  };
+  source: "openfoodfacts";
+}
+
+interface FoodLookupResponse {
+  success: boolean;
+  data: ScannedFoodProduct;
+}
+
+export async function lookupFoodByBarcode(
+  barcode: string,
+  token: string | null,
+): Promise<ScannedFoodProduct> {
+  const normalized = barcode.replace(/\D/g, "");
+  const response = await apiClient.get<FoodLookupResponse>(
+    API_ENDPOINTS.FOOD.LOOKUP_BARCODE(normalized),
+    withAuth(token),
+  );
+
+  return response.data.data;
+}