feat: integrate barcode scanning functionality and enhance Appwrite setup

- Added a new `barcode_products` collection to the Appwrite setup for managing barcode data.
- Implemented barcode scanning feature with a dedicated modal for scanning and adding products.
- Introduced new components for barcode product preview and management.
- Updated the setup script to seed verified barcode products from a JSON file.
- Enhanced the application state management to handle barcode-related actions and user interactions.

src/types.ts

@@ -34,6 +34,57 @@ export type EntryDraft = Omit<
   source?: RedBullEntry["source"];
 };
 
+export type BarcodeFormatName = "ean-13" | "ean-8" | "upc-a" | "upc-e" | "unknown";
+
+export type BarcodeProductDraft = {
+  flavourName: string;
+  sizeMl: number;
+  pricePerCan: number;
+  sugarFree?: boolean;
+  caffeineMgPerCan?: number;
+};
+
+export type ResolvedBarcodeProduct = BarcodeProductDraft & {
+  flavourAccent: string;
+  source: "built-in" | "user";
+};
+
+export type BarcodeSeedProduct = BarcodeProductDraft & {
+  verifiedBy: string;
+  sourceName?: string;
+  sourceUrl?: string;
+  notes?: string;
+  variant?: string;
+};
+
+export type UserBarcodeMapping = BarcodeProductDraft & {
+  barcode: string;
+  createdAt: string;
+  updatedAt: string;
+};
+
+export type BarcodeLookupCatalog = {
+  verifiedProducts?: Record<string, BarcodeSeedProduct>;
+  userMappings?: UserBarcodeMapping[];
+};
+
+export type BarcodeLookupResult =
+  | {
+      status: "known" | "user";
+      barcode: string;
+      product: ResolvedBarcodeProduct;
+    }
+  | {
+      status: "partial";
+      barcode: string;
+      product: BarcodeProductDraft;
+      reason: string;
+    }
+  | {
+      status: "unknown";
+      barcode: string;
+    };
+
 export type Filters = {
   flavour: string;
   dateRange: DateFilter;