d9110b623b
Adds _RollingCounter and _StatsCollector to the tracker: three rolling windows (hour=60×1min, day=24×1hr, month=30×1day) track request RPMs per model. GET /v1/stats returns combined local + peer stats. POST /v1/stats/gossip lets trackers push their local slice for additive merge in hive mode. SQLite persistence via --stats-db flag; stats survive tracker restarts. Records a stat for each proxied /v1/chat/completions request. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>