Refactor supplier analysis and product handling

- Updated `SupplierAnalysisResult` to include a `product` field and modified related tests.
- Refactored `addRowsSheet` to accommodate changes in the product structure.
- Enhanced UPC file analysis to utilize a new `toSupplierInputRecord` function for cleaner record creation.
- Introduced new types for supplier input records and product observations.
- Updated frontend components to handle new product details and analysis history.
- Improved database writing functions to streamline run completion and error handling.
- Added new API endpoints for product details and adjusted routing in the frontend.

src/integrations/keepa.ts

@@ -1,5 +1,6 @@
-import { config } from "../config.ts";
-import type { KeepaData, KeepaUpcLookupDetail } from "../types.ts";
+import { config } from "../config.ts";
+import { normalizeAsin } from "../asin.ts";
+import type { KeepaData, KeepaUpcLookupDetail } from "../types.ts";
 
 const KEEPA_BASE = "https://api.keepa.com";
 const MAX_ASINS_PER_REQUEST = 100;
@@ -224,14 +225,21 @@ function buildFailureDetail(
   };
 }
 
-export async function fetchKeepaDataBatch(
-  asins: string[],
-): Promise<Map<string, KeepaData>> {
-  const results = new Map<string, KeepaData>();
-
-  // Split into chunks of MAX_ASINS_PER_REQUEST
-  for (let i = 0; i < asins.length; i += MAX_ASINS_PER_REQUEST) {
-    const chunk = asins.slice(i, i + MAX_ASINS_PER_REQUEST);
+export async function fetchKeepaDataBatch(
+  asins: string[],
+): Promise<Map<string, KeepaData>> {
+  const results = new Map<string, KeepaData>();
+  const canonicalAsins = Array.from(
+    new Set(
+      asins
+        .map((asin) => normalizeAsin(asin))
+        .filter((asin): asin is string => asin !== null),
+    ),
+  );
+
+  // Split into chunks of MAX_ASINS_PER_REQUEST
+  for (let i = 0; i < canonicalAsins.length; i += MAX_ASINS_PER_REQUEST) {
+    const chunk = canonicalAsins.slice(i, i + MAX_ASINS_PER_REQUEST);
     const url = buildProductUrl("asin", chunk, {
       includeStats: true,
       includeBuybox: true,
@@ -248,11 +256,11 @@ export async function fetchKeepaDataBatch(
       `Keepa: ${data.products?.length ?? 0} products returned, ${tokensLeft} tokens remaining (refill: ${refillRate}/min)`,
     );
 
-    if (data.products) {
-      for (const product of data.products) {
-        const asin = product.asin;
-        if (!asin) continue;
-        results.set(asin, parseKeepaProduct(product));
+    if (data.products) {
+      for (const product of data.products) {
+        const asin = normalizeAsin(product.asin);
+        if (!asin) continue;
+        results.set(asin, parseKeepaProduct(product));
       }
     }
   }
@@ -307,10 +315,10 @@ export async function lookupKeepaUpcs(
         `Keepa: ${data.products?.length ?? 0} products returned for UPC query, ${tokensLeft} tokens remaining (refill: ${refillRate}/min)`,
       );
 
-      const byUpc = new Map<string, Map<string, KeepaData>>();
-      for (const product of data.products ?? []) {
-        const asin = String(product.asin ?? "").trim();
-        if (!asin) continue;
+      const byUpc = new Map<string, Map<string, KeepaData>>();
+      for (const product of data.products ?? []) {
+        const asin = normalizeAsin(product.asin);
+        if (!asin) continue;
 
         const keepaData = parseKeepaProduct(product);
         const productUpcs = extractUpcsFromProduct(product);