Add 永期半自动: human arm, machine open/close, then stop.

Settings toggle, Plan panel, Fleet monitor, exit locks and armed TOCTOU gates; docs and dual audits.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/tests/test_semi_auto.py

@@ -0,0 +1,75 @@
+"""半自动出场与参数。"""
+
+from __future__ import annotations
+
+from app.strategy.semi_auto import REASON_PERP_NET, REASON_POINTS, check_semi_exits
+
+
+def test_semi_points_long_needs_net_positive() -> None:
+    # 到点但净利≤0 → 不平
+    d = check_semi_exits(
+        net_pnl=-1.0,
+        entry_index=1800,
+        index_px=1850,
+        view_side="long",
+        option_move_points=50,
+        perp_exit_unit=5,
+        risk_k=1,
+    )
+    assert d.should_close is False
+    assert "净利≤0" in d.detail
+
+    d2 = check_semi_exits(
+        net_pnl=1.0,
+        entry_index=1800,
+        index_px=1850,
+        view_side="long",
+        option_move_points=50,
+        perp_exit_unit=5,
+        risk_k=1,
+    )
+    assert d2.should_close is True
+    assert d2.reason == REASON_POINTS
+
+
+def test_semi_points_short() -> None:
+    d = check_semi_exits(
+        net_pnl=2.0,
+        entry_index=1800,
+        index_px=1750,
+        view_side="short",
+        option_move_points=50,
+        perp_exit_unit=5,
+        risk_k=1,
+    )
+    assert d.should_close is True
+    assert d.reason == REASON_POINTS
+
+
+def test_semi_net_exit_with_k() -> None:
+    # 未到点，但净利 ≥ 5×2=10
+    d = check_semi_exits(
+        net_pnl=10.0,
+        entry_index=1800,
+        index_px=1810,
+        view_side="long",
+        option_move_points=50,
+        perp_exit_unit=5,
+        risk_k=2,
+    )
+    assert d.should_close is True
+    assert d.reason == REASON_PERP_NET
+    assert d.net_target == 10.0
+
+
+def test_semi_not_yet() -> None:
+    d = check_semi_exits(
+        net_pnl=3.0,
+        entry_index=1800,
+        index_px=1820,
+        view_side="long",
+        option_move_points=50,
+        perp_exit_unit=5,
+        risk_k=1,
+    )
+    assert d.should_close is False