{"message":"Kachi Product API","version":"4.0.0","platform":"Cloudflare Workers + Hono","endpoints":{"GET /products/:brand/:id/stream":"Stream product lookup across multiple regions by brand and ID","GET /regions":"List supported regions","GET /currency?from=JPY,USD&to=TWD":"Get multiple exchange rates to one target currency","GET /currency/:from/:to":"Get exchange rate between currencies","GET /products":"List all products with pagination","GET /health":"Health check"}}