Add proxy_pools: top-level config (dict of name -> pool config) so
listeners can draw from different proxy sources. Each pool has
independent sources, health testing, state persistence, and refresh
cycles.
- PoolSourceConfig gains mitm: bool|None for API ?mitm=0/1 filtering
- ListenerConfig gains pool_name for named pool assignment
- ProxyPool gains name param with prefixed log messages and
per-name state file derivation (pool-{name}.json)
- server.py replaces single proxy_pool with proxy_pools dict,
validates listener pool references at startup, per-listener closure
- API /pool merges all pools (with pool field on multi-pool entries),
/status and /config expose per-pool summaries
- Backward compat: singular proxy_pool: registers as "default"
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
29b4a36863