Captures this session's durable state: the RP-voice rebuild (chatterbox->dots
v0.22.2, config-driven voices + two-voice dialogue/narration split v0.22.3) and
the personal WT :8081 deadlock recovery + root-cause routing to worldtree-dev
(WT #401). New substrate foot-guns: dots :8198 is a fleet switchboard, dots'
language validator is an alias-mapper, per-origin TTS toggle, WT hang signature,
dots-streaming-pcm-not-headerless. Three detail files added under
persistent-memory.d/.
