Fix category-crawler-jobs store lookup query

- Fix column name from s.dutchie_plus_url to s.dutchie_url
- Add availability tracking and product freshness APIs
- Add crawl script for sequential dispensary processing

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

backend/src/scripts/crawl-five-sequential.ts

@@ -0,0 +1,26 @@
+import { runDispensaryOrchestrator } from '../services/dispensary-orchestrator';
+
+// Run 5 crawlers sequentially to avoid OOM
+const dispensaryIds = [112, 81, 115, 140, 177];
+
+async function run() {
+  console.log('Starting 5 crawlers SEQUENTIALLY...');
+
+  for (const id of dispensaryIds) {
+    console.log(`\n=== Starting crawler for dispensary ${id} ===`);
+    try {
+      const result = await runDispensaryOrchestrator(id);
+      console.log(`  Status: ${result.status}`);
+      console.log(`  Summary: ${result.summary}`);
+      if (result.productsFound) {
+        console.log(`  Products: ${result.productsFound} found, ${result.productsNew} new, ${result.productsUpdated} updated`);
+      }
+    } catch (e: any) {
+      console.log(`  ERROR: ${e.message}`);
+    }
+  }
+
+  console.log('\n=== All 5 crawlers complete ===');
+}
+
+run().catch(e => console.log('Fatal:', e.message));