User report (v0.3.0 full campaign): audio progressively degrades from Silo;
by Caverns/Cradle the OST is inaudible and SFX come and go; restarting the
game restores it. Logged as D322 with static triage: level teardown audit
clean, mixer stateless per frame, D202's covered leak class is one shape
only (ownerless count==-1 loops) validated single-level only, and D305
already records a pool/list accounting desync. Ranked hypotheses:
voice-pool exhaustion/counter drift > queue starvation > evtq saturation.
Probe: GE_D322=1 prints sfx=n/8 (SFX soft cap), evtq=n/64, pv free/lame/alloc
(24 physical synth voices) + pipeline depth/drops every 5 s of wall clock,
read with GE_D204. sndD322PoolSummary() walks the ALSynth lists under the
D285 lock; NB drvr is a pointer field (first build faulted on &drvr).
Smoke-tested 40 s headless -level_09: pools coherent, no crash.
Also adds the missing D321 row to the findings index (entry existed at file
tail with no table row, so it was absent from the CSV too).
James Dansereau
7bb43260de