fix(scraper): fix Arista series-level URL builder + bypass Crawlee URL deduplication

- buildAristaUrl() now extracts series prefix (7060X5-32QS → 7060x5-series)
  instead of individual model URLs that lack og:image
- Strip trailing sub-variant 'A' so R3A → R3 series page
- Add uniqueKey: row.id to each request — prevents Crawlee from deduplicating
  models that share the same series URL (e.g. 7060x5-series)
- For Arista: always prefer fresh builder URL over stored product_page_url
  so stale individual-model URLs don't override correct series pages

packages/scraper/src/scrapers/switch-image-playwright.ts

@@ -69,10 +69,20 @@ function isGenericImage(url: string): boolean {
 // ── Product page URL builders ─────────────────────────────────────────────────
 
 function buildAristaUrl(model: string): string | null {
-  // 7060X6-64PE → try series page and individual page
-  // Arista individual model pages: /en/products/<model-lowercase>
-  const slug = model.toLowerCase().replace(/[^a-z0-9-]/g, "-");
-  return `https://www.arista.com/en/products/${slug}`;
+  // Map model to its Arista series page (og:image lives on series pages, not individual model pages).
+  // Pattern: extract alphanumeric prefix before the first "-<digits>" port-count suffix.
+  //   7060X5-32QS  → 7060x5  → /en/products/7060x5-series
+  //   7050CX3-32S  → 7050cx3 → /en/products/7050cx3-series
+  //   7280R3A-48D5 → 7280r3a → strip trailing sub-variant 'A' → 7280r3 → /en/products/7280r3-series
+  //   7020R        → 7020r   → /en/products/7020r-series
+  const leadMatch = model.match(/^(\d{3,4}[A-Z0-9]*?)(-\d|$)/i);
+  if (!leadMatch) return null;
+
+  let series = leadMatch[1].toLowerCase();
+  // Strip trailing sub-variant 'a' (R3A → R3, R2A → R2) — Arista groups these on the base series page
+  series = series.replace(/([a-z]\d+)a$/, "$1");
+
+  return `https://www.arista.com/en/products/${series}-series`;
 }
 
 function buildDellUrl(model: string): string | null {
@@ -160,17 +170,24 @@ export async function fetchSwitchImagesPlaywright(targetVendorSlug?: string): Pr
 
   console.log(`  ${rows.length} switches need images (Playwright vendors)\n`);
 
-  const requests: Array<{ url: string; userData: SwitchCrawlData }> = [];
+  const requests: Array<{ url: string; uniqueKey: string; userData: SwitchCrawlData }> = [];
 
   for (const row of rows) {
     const builder = URL_BUILDERS[row.vendor_slug];
-    const productUrl = row.product_page_url || (builder ? builder(row.model) : null);
+    // For Arista: prefer freshly-built series URL over a stale stored model URL
+    const builtUrl = builder ? builder(row.model) : null;
+    const productUrl = row.vendor_slug === "arista"
+      ? (builtUrl ?? row.product_page_url)   // always use fresh series URL for Arista
+      : (row.product_page_url ?? builtUrl);   // other vendors: prefer stored URL
     if (!productUrl) {
       console.log(`  [SKIP] ${row.vendor_name} ${row.model} — no URL`);
       continue;
     }
     requests.push({
       url: productUrl,
+      // Use switch ID as uniqueKey so Crawlee doesn't deduplicate series-level URLs.
+      // Multiple models can share the same series page (e.g. 7060x5-series) — each needs its own DB write.
+      uniqueKey: row.id,
       userData: {
         switchId: row.id,
         model: row.model,