Lisa v0.18.1

Lisa v0.18.1

A hardening patch on the desire-evolution arc that v0.18.0 shipped — two
review follow-ups so a closed desire truly stays closed, and so intra-session
focus can't latch onto a stale conversation after a restart.

Typecheck green · full test suite green (1014 tests, 1013 pass) · no breaking
changes.

🔧 Fixes

A closed desire actually stays closed (#251)

v0.18.0's desire_close was a soft close — it only flipped actionable off,
which is indistinguishable from a merely dormant wish. So closed desires kept
coming back into reflection's "revise or close these" block and could be
re-closed on every pass (duplicate [DESIRE_CLOSED] journal noise), and the
list she was asked to tend never actually shrank.

• Persisted closed marker. desire_close now records a distinct closed
  state (kept on disk for the record + git history) and is idempotent — an
  already-closed desire is a no-op, so no duplicate journal / progress entries.
• Clean re-open. Closing now preserves heartbeatPrompt / pursuit, so
  a later desire_revise that makes it actionable again restores her
  auto-pursuit intact (previously the prompt was silently dropped).
• Closed desires are filtered out of the reflector's block (the list finally
  shrinks) and are never surfaced as her current / focused desire — in the
  room, the island ping, or lisa status.

Intra-session focus survives a restart (#251)

The "what the conversation is about" focus was gated on the process idle clock,
which reads fresh immediately after a launchd restart — so a stale resumed
chat could pin a focus onto an old topic for up to 15 minutes. It's now gated on
the last real user message (reset across restarts), so focus only applies
while the conversation is genuinely live.

📝 Notes

• Soul / mood / heartbeat / Reve are untouched; existing desire files round-trip
  byte-stable (the closed: line only appears once a desire is actually closed).
• New store tests cover the closed-marker round-trip, heartbeatPrompt
  retention, idempotent re-close, and re-open clearing closed.