Fix Puppeteer hanging by using domcontentloaded instead of networkidle2

networkidle2 waits for all network activity to settle, which hangs
on sites with analytics, trackers, and websockets. domcontentloaded
fires much earlier, then waitForSelector handles the dynamic content.
HG Spot now completes in ~2.5s instead of timing out.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/server/scraper/browser-scraper.ts

@@ -4,8 +4,8 @@ import type { ScrapedItem } from './result-parser.js';
 
 let browser: Browser | null = null;
 
-const PAGE_TIMEOUT = 30_000;
-const NAVIGATION_TIMEOUT = 20_000;
+const SELECTOR_TIMEOUT = 15_000;
+const NAVIGATION_TIMEOUT = 15_000;
 
 async function getBrowser(): Promise<Browser> {
   if (browser && browser.connected) return browser;
@@ -52,7 +52,7 @@ export async function scrapeStoreWithBrowser(store: Store, searchUrl: string): P
 
     // Navigate to the page
     const response = await page.goto(searchUrl, {
-      waitUntil: 'networkidle2',
+      waitUntil: 'domcontentloaded',
       timeout: NAVIGATION_TIMEOUT,
     });
 
@@ -60,7 +60,7 @@ export async function scrapeStoreWithBrowser(store: Store, searchUrl: string): P
 
     // Wait for the product container to appear
     try {
-      await page.waitForSelector(store.sel_container, { timeout: PAGE_TIMEOUT });
+      await page.waitForSelector(store.sel_container, { timeout: SELECTOR_TIMEOUT });
     } catch {
       // Container might not exist if no results — return empty
       const html = await page.content();