v1.9.1

New

• Tail-hedging now extends beyond warmup to steady-state playback: hedges stalled requests when the pump's buffer lead thins, confirmed working in production
• Banned peer count (V304 session ban) exposed on /metrics and the Health Monitor dashboard

Docs

• README: added Adaptive Chunk Size, AdaptiveShield, TailHedge, PEXChurn to the feature list
• README: restyled header (ASCII banner, badges, semantic H1), added an FAQ section, removed em-dashes
• Adaptive Shield section updated to reflect the real escalating clean-streak behavior (30/60/90/120s)