[ lonniev/dpyc-community ] fix: correct excalibur-mcp service URL to excalibur-mcp.fastmcp.app The registry had excalibur.fastmcp.app which does not serve OAuth discovery. The correct FastMCP Cloud URL is excalibur-mcp.fastmcp.app. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> https://github.com/lonniev/dpyc-community/commit/0b11cee6…