Fix hub full-close double-booking trend plans.

Sync active plans after hub position close, merge final close snapshots per plan, and backfill missing trade records when ending an already-stopped plan.

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

tests/test_strategy_snapshot_dedup.py

@@ -143,9 +143,41 @@ def test_list_strategy_snapshots_hides_duplicate_keys():
     assert int(stop_rows[0]["id"]) == 12
 
 
+def test_dedupe_keeps_manual_over_stop_loss():
+    conn = _mem_conn()
+    payload = json.dumps({"symbol": "ONDO/USDT"}, ensure_ascii=False)
+    for snap_id, label in ((10, "止损"), (11, "手动平仓")):
+        conn.execute(
+            """INSERT INTO strategy_trade_snapshots (
+                id, strategy_type, source_id, symbol, result_label, snapshot_json, closed_at, created_at, pnl_amount
+            ) VALUES (?,?,?,?,?,?,?,?,?)""",
+            (
+                snap_id,
+                STRATEGY_TREND,
+                7,
+                "ONDO/USDT",
+                label,
+                payload,
+                "2026-06-08 08:44:00",
+                "2026-06-08 08:44:00",
+                -2.23,
+            ),
+        )
+    conn.commit()
+    removed = dedupe_strategy_snapshots(conn)
+    conn.commit()
+    assert removed == 1
+    row = conn.execute(
+        "SELECT result_label FROM strategy_trade_snapshots WHERE source_id=?",
+        (7,),
+    ).fetchone()
+    assert row["result_label"] == "手动平仓"
+
+
 if __name__ == "__main__":
     test_save_trend_plan_snapshot_skips_duplicate_result()
     test_dedupe_strategy_snapshots_handles_many_duplicates()
     test_dedupe_strategy_snapshots_keeps_latest_id()
     test_list_strategy_snapshots_hides_duplicate_keys()
+    test_dedupe_keeps_manual_over_stop_loss()
     print("all ok")