Implement connection health monitoring and intelligent load balancing

[bomanaps]

Description

Summary

Implement comprehensive connection health monitoring and intelligent load balancing for py-libp2p to address the 1-1 connection mapping limitation.

Related Discussion

• Discussion # TODO Analysis: Swarm.py Issues #717: TODO Analysis - Swarm.py Issues

Scope

• New libp2p/network/health/ module
• Integration with Swarm connection lifecycle
• Extended ConnectionConfig with health monitoring options
• Host-level health monitoring API methods

Motivation

Goals

• Track connection health metrics (latency, success rates, bandwidth, stability)
• Proactive health monitoring service with configurable intervals
• Multiple load balancing strategies (round_robin, least_loaded, health_based, latency_based)
• Health-aware connection selection
• API consistency fix for new_host() to accept connection_config parameter

Current Implementation

Related Discussion

• Discussion # TODO Analysis: Swarm.py Issues #717: TODO Analysis - Swarm.py Issues

Are you planning to do it yourself in a pull request ?

Yes