glm-5.3-flash
b73804d9bc
Mirrors the WS-13 progress semantics onto the axum upgrade path with three integration tests over the real HttpAdapter surface (also the COV-11b dark-knob gate — with_ws_idle_timeout had no test caller): the forever-dribble client is evicted with 1001 despite arriving messages; a productive session round-trips calls across many windows without eviction; the None knob never evicts a dribbling client.