v0.8.41

Patch Changes

• 434792e: Stop the sidebar spinner from running forever after a turn ends

  The activity watchdog decided "is this turn still running?" from the engine
  transcript's mtime. But an engine parked at its prompt keeps touching its
  transcript, so whenever a Stop hook went missing the watchdog re-armed itself
  on every window and the task spun indefinitely. It now reads the transcript's
  newest turn-COMPLETION marker alongside the mtime: a completion at or after the
  turn's start ends it regardless of how recent the writes are, while a long
  single turn with no completion yet keeps its badge on the same heartbeat as
  before. Engines without completion markers are unchanged.

  Hook failures are also no longer completely silent — KOBE_HOOK_DEBUG=1 logs
  the reason to stderr, without ever failing the engine.