- Bump quote rewrite API timeout to 180s for longer AI batch processing
- Extend structured quote item fields to include model and size, remove old type field
- Overhaul n8n quote rewriter workflow with updated prompt and null-safe output handling
- Add locked source-of-truth pricing controls to auto-calculate cost/selling prices
- Remove inline cost/selling inputs from quote items table and refine table layout
- Improve rewrite modal UI with sticky headers, better empty chip handling, and styling
- Add `user_edited` field to QuoteItem type to gate AI rewrites on user-edited content
- Add idempotent migration script to add and backfill the `user_edited` field across quote items
- Replace plain Select components with searchable SupplierSearch combobox across order and quote pages
- Add working days calculation utility and aged quote warning badges for overdue quotes
- Implement expandable row previews in the quotes list view
- Add full AI rewrite workflow: backend API endpoint, frontend modal, and n8n workflow definition
- Update package scripts for the new migration
