Module server 

Lock-free HTTP daemon server.

Provides:

• MCP JSON-RPC endpoint (/message) + Streamable-HTTP SSE (/sse)
• REST API (/api/*) for the local pcx CLI
• Health (/health) and stats (/stats)

Tool-call business logic lives in tools::mcp::*; this module is a thin transport layer that maps JSON payloads onto those calls.

Structs

DaemonServer

Lock-free daemon server