paho's default max_inflight_messages=20 silently fills on Bambu's broker
after ~16-20 cumulative commands per session, leaving publish() returning
success while packets sit in paho's internal queue. force_reconnect heals
it because the inflight queue is per-session, but it costs one wasted
user action to trigger.
Lifting the ceiling to 1000 keeps QoS=1 untouched (deliberately chosen
for cross-model reliability — A1, P1S, X1C, H2D, P2S, X2D all need it)
and removes the inflight queue as the bottleneck without changing
wire-protocol behaviour. The 0.2.4b2 watchdog reconnect stays as
defence-in-depth.
Diagnosis credit: RosdasHH's QoS=1/0/2 bisect on #1164.
maziggy
875d80ad3c