Barcode Hub is a Python service for barcode recognition over HTTP and MCP. The recognition backend is `zxing-cpp`. The API response body is intentionally minimal: ```json { "barcodes": [ { "text": "4607084351323", "data": "NDYwNzA4NDM1MTMyMw==", "type": "EAN13", "valid": "yes" } ] } ``` Build identity is emitted at runtime as an HTTP `Server` header on every