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.

scripts/setup-appwrite.mjs

@@ -1,6 +1,7 @@
 /* global console, fetch, process, setTimeout */
 
 import { existsSync, readFileSync } from "node:fs";
+import { URL } from "node:url";
 
 const env = loadEnvFiles([".env", ".env.local"]);
 
@@ -9,7 +10,11 @@ const projectId = readEnv("VITE_APPWRITE_PROJECT_ID", "6a0752ee001fb2ef7138");
 const databaseId = readEnv("VITE_APPWRITE_DATABASE_ID", "redbull_tracker");
 const intakeTableId = readEnv("VITE_APPWRITE_COLLECTION_ID", "intake_entries");
 const chatTableId = readEnv("VITE_APPWRITE_CHAT_COLLECTION_ID", "coach_chats");
+const barcodeTableId = readEnv("VITE_APPWRITE_BARCODE_COLLECTION_ID", "barcode_products");
 const apiKey = readEnv("APPWRITE_API_KEY", "");
+const verifiedBarcodeProducts = JSON.parse(
+  readFileSync(new URL("../src/data/verified-barcodes.json", import.meta.url), "utf8"),
+);
 
 if (!apiKey) {
   throw new Error("APPWRITE_API_KEY missing. Add a server/admin Appwrite key to .env.local, without VITE_.");
@@ -59,6 +64,34 @@ await retireLegacyChatColumns(chatTableId, [
   "version",
 ]);
 await waitForColumns(chatTableId, ["userId", "title", "messages", "updatedAt"]);
+await ensureTable({
+  tableId: barcodeTableId,
+  name: "Barcode products",
+  // Schema notes:
+  // - scope="verified" rows are seeded by this admin script and readable by signed-in users.
+  // - scope="user" rows are created by the browser SDK with per-user row permissions.
+  columns: [
+    { kind: "string", key: "scope", size: 16, required: true },
+    { kind: "string", key: "ownerUserId", size: 64, required: false },
+    { kind: "string", key: "barcode", size: 32, required: true },
+    { kind: "string", key: "flavourName", size: 128, required: true },
+    { kind: "integer", key: "sizeMl", required: true },
+    { kind: "float", key: "pricePerCan", required: true },
+    { kind: "boolean", key: "sugarFree", required: true },
+    { kind: "float", key: "caffeineMgPerCan", required: false },
+    { kind: "string", key: "verifiedBy", size: 512, required: false },
+    { kind: "string", key: "sourceName", size: 512, required: false },
+    { kind: "string", key: "sourceUrl", size: 2048, required: false },
+    { kind: "string", key: "variant", size: 64, required: false },
+    { kind: "string", key: "notes", size: 2000, required: false },
+  ],
+  indexes: [
+    { key: "barcode", type: "key", columns: ["barcode"], orders: ["ASC"], lengths: [32] },
+    { key: "scope_barcode", type: "key", columns: ["scope", "barcode"], orders: ["ASC", "ASC"], lengths: [16, 32] },
+    { key: "user_barcode", type: "key", columns: ["ownerUserId", "barcode"], orders: ["ASC", "ASC"], lengths: [64, 32] },
+  ],
+});
+await seedVerifiedBarcodeProducts(barcodeTableId, verifiedBarcodeProducts);
 
 console.log("Appwrite database and tables ready.");
 
@@ -156,6 +189,43 @@ async function ensureIndex(tableId, index) {
   console.log(`Index ${tableId}.${index.key} created.`);
 }
 
+async function seedVerifiedBarcodeProducts(tableId, products) {
+  for (const [barcode, product] of Object.entries(products)) {
+    const rowId = `verified_${barcode}`;
+    const data = {
+      scope: "verified",
+      ownerUserId: "",
+      barcode,
+      flavourName: product.flavourName,
+      sizeMl: product.sizeMl,
+      pricePerCan: product.pricePerCan,
+      sugarFree: Boolean(product.sugarFree),
+      caffeineMgPerCan: product.caffeineMgPerCan,
+      verifiedBy: product.verifiedBy ?? "",
+      sourceName: product.sourceName ?? "",
+      sourceUrl: product.sourceUrl ?? "",
+      variant: product.variant ?? "",
+      notes: product.notes ?? "",
+    };
+    const path = `/tablesdb/${databaseId}/tables/${tableId}/rows/${rowId}`;
+    const existing = await request("GET", path, undefined, [200, 404]);
+
+    if (existing.status === 404) {
+      await request(
+        "POST",
+        `/tablesdb/${databaseId}/tables/${tableId}/rows`,
+        { rowId, data, permissions: ['read("users")'] },
+        [201],
+      );
+      console.log(`Verified barcode ${barcode} seeded.`);
+      continue;
+    }
+
+    await request("PUT", path, { data, permissions: ['read("users")'] }, [200]);
+    console.log(`Verified barcode ${barcode} updated.`);
+  }
+}
+
 async function waitForColumns(tableId, keys) {
   const pending = new Set(keys);
   for (let attempt = 0; attempt < 30 && pending.size; attempt += 1) {