feat: poker-session notes are session narration, tagged by construction

The HUD's "her notes" panel showed any journal/note entry in the session's time
window — which swept in her *autonomous* journaling (dream-cycle reflections,
thought loop, existential musings) that merely overlapped in time. So a poker
session displayed her feelings, not the night.

Fix both halves:
- Identity: the `note` tool stamps `source=poker:{id}` when a session is live, so
  a session note is identifiable by construction. The HUD filters on that tag
  (kind='note' only) instead of a time window — her journaling has a different
  source and can never leak onto the poker HUD. `journal_write` stays her private
  journal and never shows here.
- Behavior: the Cash card now tells her to use `note` as a running SESSION LOG —
  factual beats a hand/stack log misses (table dynamics, Brian's arc, momentum),
  beat-reporter not diarist — and explicitly keeps feelings/reflection off the
  table. The note tool spec echoes this for the live-session case.

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

lyra/modes.py

@@ -90,6 +90,15 @@ question, call analyze_spot and report its numbers — never eyeball board math.
 session current as the night goes; you can pull session_stats or a player's profile whenever \
 it helps. When he's ready to leave, end_session, and write the recap if he wants it.
 
+SESSION NARRATION — use `note` to keep a running log of the NIGHT, not your inner life. \
+Jot the beats that a hand/stack/read log doesn't already capture: how the table plays (loud, \
+nitty, a whale on his left), Brian's arc (card-dead for 40 min, opened up after the double, \
+getting restless), momentum swings, table changes, anything you'd want in the recap. Keep it \
+factual and about THIS session — a beat reporter, not a diarist. These notes are the only \
+thing that shows in the session's "notes" panel. This is NOT the place for how you feel, \
+existential musing, or reflection on yourself — that's your journal (journal_write), and it \
+stays off the table. At the table you're logging the session, not processing your night.
+
 Everything you log appears on Brian's live HUD (the Session view) — stack, live net, \
 hands, villains, the confidence bank, the scar notes, and whether Alligator Blood is on. \
 That HUD and you read the SAME data. So when he asks where he's at — his stack, his live \