Aluminums2090-T83

The `translate-ar` script is ready — it will: 1. Fetch all products from Sanity 2. Translate each missing `description_ar` and `longDescription_ar` using Claude CLI 3. Patch those fields back to Sanity Per the project rules, Sanity writes require explicit confirmation. Should I run `npm run translate-ar`? This will update products in the `production` dataset.