feat: poker copilot — structured session/hand/villain tracking + stats

The real upgrade over the ChatGPT prose-recap workflow: structured data capture
via tools Lyra drives during a live session, with stats computed from real data.

- lyra/poker.py: domain pack (separate from core memory) — poker_sessions,
  poker_hands, persistent poker_players (villain file) + player_reads; functions
  for session lifecycle (start/buyin/end with net+hours), tolerant hand logging,
  villain upsert/reads, and session/running stats ($/hr, by stake/venue/game)
- tools.py: 8 poker tools wired into the chat tool loop (start_session,
  add_buyin, log_hand, add_read, end_session, session_stats, running_stats,
  get_villain_file) — partial/terse input tolerated
- import/: Brian's real .md session-log format (reference for the phase-2 recap)
- tests: lifecycle/net math, partial hand logging, villain upsert, running
  stats, tool dispatch

Verified live: a full talk-through session persisted as structured rows
(session +240, AKs hand, seat-5 read) — she drove the tools from natural chat.

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

tests/test_poker.py

@@ -0,0 +1,74 @@
+"""Poker domain: structured session/hand/villain storage + stats, and the tools."""
+from __future__ import annotations
+
+import importlib
+
+import pytest
+
+
+@pytest.fixture
+def lyra(tmp_path, monkeypatch):
+    monkeypatch.setenv("LYRA_DB_PATH", str(tmp_path / "test.db"))
+    from lyra import llm
+    monkeypatch.setattr(llm, "embed", lambda texts: [[0.1, 0.2, 0.3] for _ in texts])
+    import lyra.memory as memory
+    importlib.reload(memory)
+    import lyra.poker as poker
+    importlib.reload(poker)  # rebind to the reloaded memory + reset its schema flag
+    return poker
+
+
+def test_session_lifecycle_and_net(lyra):
+    poker = lyra
+    sid = poker.start_session(venue="Meadows", stakes="1/3", buy_in=400)
+    assert poker.live_session()["id"] == sid
+    poker.add_buyin(500)  # rebuy -> total 900
+    s = poker.end_session(cash_out=627)
+    assert s["buy_in_total"] == 900
+    assert s["net"] == pytest.approx(-273)
+    assert s["status"] == "closed"
+    assert poker.live_session() is None  # closed -> no live session
+
+
+def test_log_hand_partial_fields(lyra):
+    poker = lyra
+    poker.start_session(stakes="1/3", buy_in=300)
+    hid = poker.log_hand(position="BTN", hole_cards="AKs", result=120, tag="confidence")
+    hands = poker.list_hands()
+    assert len(hands) == 1 and hands[0]["id"] == hid
+    assert hands[0]["hole_cards"] == "AKs" and hands[0]["result"] == 120
+    assert hands[0]["board"] is None  # unspecified fields stay null
+
+
+def test_villain_file_upsert_and_read(lyra):
+    poker = lyra
+    poker.start_session(venue="Meadows", stakes="1/3", buy_in=300)
+    poker.add_read("limp-called K4s UTG", name="Sleepy John", seat="3",
+                   tendencies="loose-passive, jackpot dreamer", category="feeder", venue="Meadows")
+    # update the same player
+    poker.add_read("cold-called a 3-bet with A2o", name="sleepy john")
+    file = poker.get_villain_file(name="Sleepy")
+    assert len(file) == 1  # matched by name, not duplicated
+    assert file[0]["category"] == "feeder"
+
+
+def test_running_stats(lyra):
+    poker = lyra
+    s1 = poker.start_session(stakes="1/3", buy_in=300)
+    poker.end_session(540, session_id=s1)
+    s2 = poker.start_session(stakes="1/3", buy_in=400)
+    poker.end_session(300, session_id=s2)
+    rs = poker.running_stats(stakes="1/3")
+    assert rs["sessions"] == 2
+    assert rs["net"] == pytest.approx(140)  # +240 then -100
+    assert "1/3" in rs["by_stake"]
+
+
+def test_poker_tools_dispatch(lyra):
+    from lyra import tools
+    assert "started" in tools.dispatch("start_session", {"stakes": "1/3", "buy_in": 300})
+    assert "logged" in tools.dispatch("log_hand", {"position": "CO", "hole_cards": "QQ"})
+    assert "closed" in tools.dispatch("end_session", {"cash_out": 500})
+    # the poker tools are offered to the model
+    names = {s["function"]["name"] for s in tools.specs()}
+    assert {"start_session", "log_hand", "end_session", "running_stats", "get_villain_file"} <= names