feat: Ford legacy support, EMEX browser pooling, collapsible sidebar

- Add PL24 Ford legacy service for fordt_parts architecture
- Refactor EMEX to use persistent browser pool instead of per-call instances
- Make vehicle decode resilient: fallback to PL24 when Corgi doesn't recognize VIN
- Add collapsible sidebar with persistent user preference
- Improve brand access guard and categories service
- Add debug/test scripts for VIN e2e testing

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/api/src/database/seed.ts

@@ -29,6 +29,8 @@ const BRANDS_DATA = [
   { name: "Mini", slug: "mini" },
   { name: "Dacia", slug: "dacia" },
   { name: "Subaru", slug: "subaru" },
+  { name: "Suzuki", slug: "suzuki" },
+  { name: "Mitsubishi", slug: "mitsubishi" },
 ];
 
 const PLANS_DATA = [