Crewhu MCP fundamentals: token authentication via the `X-Crewhu-Api-Token` header and its gateway env-var mapping, the flat 18-tool surface across the surveys, users, badges, and prizes domains (only `crewhu_badges_update_contest` writes), pagination, and error codes.
Crewhu MCP fundamentals: token authentication via the `X-Crewhu-Api-Token` header and its gateway env-var mapping, the flat 18-tool surface across the surveys, users, badges, and prizes domains (only `crewhu_badges_update_contest` writes), pagination, and error codes.