fix: eBay enricher Crawlee isolation + ephemeral queues

- Add makeCrawleeConfig isolation to CheerioCrawler instances
- Switch from named persistent RequestQueue to ephemeral null queues:
  named queues retain 'handled' state and skip all URLs on re-runs,
  causing 0 observations on every run after the first.
- Applies to both enrichSwitchFromEbay and enrichTransceiversFromEbay.

packages/scraper/src/scrapers/ebay-enricher.ts

@@ -11,6 +11,7 @@
  */
 
 import { CheerioCrawler, RequestQueue } from "crawlee";
+import { makeCrawleeConfig } from "../utils/crawlee-config";
 import { scrapeWithLLM } from "../crawler-llm/core";
 import { db } from "../utils/db";
 import { logger } from "../utils/logger";
@@ -109,7 +110,10 @@ async function enrichSwitchFromEbay(switchId: string, model: string): Promise<En
     imageUrl: null,
   };
 
-  const queue = await RequestQueue.open(`ebay-${switchId.substring(0, 8)}`);
+  // Use ephemeral queue (null) so every run starts fresh — named queues
+  // retain "handled" state and skip already-processed URLs on re-runs.
+  const ebayConfig = makeCrawleeConfig("ebay-switches");
+  const queue = await RequestQueue.open(null, { config: ebayConfig });
   await queue.addRequest({ url: buildSearchUrl(model), userData: { model, phase: "search" } });
 
   const crawler = new CheerioCrawler({
@@ -230,7 +234,7 @@ async function enrichSwitchFromEbay(switchId: string, model: string): Promise<En
     failedRequestHandler: ({ request, error }) => {
       logger.warn(`eBay enricher failed for ${request.url}: ${error}`);
     },
-  });
+  }, ebayConfig);
 
   try {
     await crawler.run();
@@ -378,7 +382,9 @@ export async function enrichTransceiversFromEbay(limit = 50): Promise<void> {
 
   logger.info(`eBay transceiver enricher: processing ${transceivers.rows.length} transceivers`);
 
-  const queue = await RequestQueue.open("ebay-transceivers");
+  // Ephemeral queue: every run starts fresh (named queues skip already-handled URLs)
+  const crawleeConfig = makeCrawleeConfig("ebay-transceivers");
+  const queue = await RequestQueue.open(null, { config: crawleeConfig });
 
   for (const tcvr of transceivers.rows) {
     const query = tcvr.part_number || `${tcvr.form_factor} ${tcvr.speed_gbps}G transceiver`;
@@ -427,7 +433,7 @@ export async function enrichTransceiversFromEbay(limit = 50): Promise<void> {
       // Best new price
       if (newItems[0]) await insertObs(newItems[0], "new");
     },
-  });
+  }, crawleeConfig);
 
   try {
     await crawler.run();