fix: scope a session's "her notes" to its own time window

The HUD's notes list filtered journal/note entries by `created_at >= started_at`
with no upper bound, so a *closed* session kept absorbing every note she wrote
afterward — a session from last Saturday would show a note jotted 25 minutes ago.

Cap the window at `ended_at` for closed sessions; live sessions (no end yet) stay
open-ended as before.

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

lyra/poker.py

@@ -1298,12 +1298,17 @@ def hud(session_id: int | None = None) -> dict | None:
         for h in list_hands(sid)
     ]
 
-    # Notes she jotted during this session: journal/note entries since it started.
+    # Notes she jotted *during* this session: journal/note entries inside its
+    # [started_at, ended_at] window. A live session has no end yet, so it stays
+    # open-ended; without the upper bound a closed session would keep absorbing
+    # every note she writes long after it's over.
     started = s.get("started_at") or ""
+    ended = s.get("ended_at") or None
     notes = [
         {"created_at": j["created_at"], "kind": j["kind"], "content": j["content"]}
         for j in memory.list_journal(kinds=("note", "journal"))
         if (j["created_at"] or "") >= started
+        and (ended is None or (j["created_at"] or "") <= ended)
     ][:20]
 
     stats = session_stats(sid)