> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://pos-api-docs.lucky-tom.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://pos-api-docs.lucky-tom.com/_mcp/server.

# Overview

FR31. Player created a one-time code+PIN in the portal. Flow: validate (quote, no pay) → hand cash → commit, or reject at the counter. Default v1 reject invalidates the tuple.