PremiumSupply: AI spreadsheet import for a B2B parts-trading hub

A B2B parts-trading hub. Customers sent orders as messy spreadsheets that staff re-typed by hand. I built an AI import: the app samples the sheet, asks Claude to find where the data starts and map each column to a field, then checks every row and points any error back to its exact Excel cell.

• Turns order lines into margin-optimal supplier orders
• Prices offers by strategy and renders PDF offers with a pooled headless Chrome service
• End-to-end typed API from the Bun and ElysiaJS backend to the SvelteKit frontend
• Full-text search across seven tables in Postgres

Stack: Bun, ElysiaJS, SvelteKit, PostgreSQL, Drizzle ORM, TypeBox, Anthropic API, Puppeteer