HEL-282: 写库路径事务提交与审计留痕自查修复

同类未提交即 close 回滚、业务与审计拆成两笔事务的路径一并收进可嵌套事务边界。

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: multica-agent <github@multica.ai>

tests/test_matching.py

@@ -943,6 +943,38 @@ class ProjectionRebuildTests(MatchingBase):
         self.assertEqual(sorted(before), sorted(after))
         self.assertEqual(sorted(claims_before), sorted(claims_after))
 
+    def test_rebuild_clears_stale_projection_and_survives_close(self) -> None:
+        """HEL-282: DELETEs used to stay uncommitted when nothing was restored."""
+        from bank_importer.db import connect as db_connect
+
+        row_a = self.add_row(
+            self.company_a, own_account="6222000000000001",
+            cp_account="6222000000000002", expense="100.00",
+        )
+        row_b = self.add_row(
+            self.company_b, own_account="6222000000000002",
+            cp_account="6222000000000001", income="100.00",
+        )
+        matching.reconcile_rows(self.connection, [row_a, row_b])
+        with self.connection:
+            self.connection.execute(
+                "UPDATE canonical_transfer_events SET lifecycle = 'superseded'"
+            )
+        matching.rebuild_current_projection(self.connection)
+        self.connection.close()
+        fresh = db_connect(self.db_path)
+        try:
+            remaining = fresh.execute(
+                "SELECT COUNT(*) AS n FROM current_transfer_decisions"
+            ).fetchone()["n"]
+            claims = fresh.execute(
+                "SELECT COUNT(*) AS n FROM transfer_observation_claims"
+            ).fetchone()["n"]
+        finally:
+            fresh.close()
+        self.assertEqual(0, remaining)
+        self.assertEqual(0, claims)
+
 
 class ConcurrentReconcileTests(MatchingBase):
     def test_concurrent_reconcile_creates_one_event(self) -> None: