feat: session timeline (running log) + reliable live logging

She was logging stacks but skipping hands — the CASH card framed logging as one of
two registers, so she'd 'talk about' a hand instead of recording it (streaming
returns content OR tool calls). Fixes:

- CASH card: logging is mandatory and log-FIRST — trackable facts get the tool call
  before the reply, both not either/or, hands never skipped for conversation.
- log_stack gains a note ('card dead', 'doubled up vs the LAG') -> timeline context;
  tool spec + handler updated. Migration adds poker_stack_log.note.
- poker.timeline(): interleaves session start, stack updates (+context), hands
  (linkable), reads, and rituals chronologically in local time (clock.short()).
  Added to the hud() bundle.
- Session HUD: a 📜 Timeline card renders the running log with hand links — the
  '10:19pm start … 1:34a doubled up, $750 (hand)' view Brian wanted.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

lyra/clock.py

@@ -31,6 +31,12 @@ def _parse(iso: str) -> datetime:
     return dt if dt.tzinfo else dt.replace(tzinfo=timezone.utc)
 
 
+def short(iso_or_dt: str | datetime | None = None) -> str:
+    """Local time-of-day like '10:45pm', for timeline rows."""
+    dt = _parse(iso_or_dt) if isinstance(iso_or_dt, str) else (iso_or_dt or now())
+    return dt.astimezone(_local_tz()).strftime("%-I:%M%p").lower()
+
+
 def stamp(dt: datetime | None = None) -> str:
     """Wall-clock stamp in Brian's local timezone, e.g.
     'Friday, 27 Jun 2026, 01:50 EDT'. Times are stored UTC; this is what she *reads*,