myko-server 4.0.0-canary.11

Myko server runtime — WebSocket, durable event backends, peer federation.

This crate contains the tokio-dependent parts of the Myko server:

• CellServer — server lifecycle (durable catch-up init, WS accept loop)
• kafka — Kafka producer/consumer (implements Persister trait)
• postgres — PostgreSQL producer/consumer (event-table + LISTEN/NOTIFY)
• ws_handler — WebSocket connection handling
• peer_registry — federation with other servers
• mcp — Model Context Protocol server

Tokio-free server types (CellServerCtx, HandlerRegistry, etc.) live in myko_rs::server.