feat: deliver schema 15 monthly settlement lifecycle

tests/test_monthly_settlement_drafts.py

@@ -61,7 +61,7 @@ def test_empty_draft_persists_without_closing_and_has_consistent_public_shape(tm
     assert isinstance(result["review"], dict)
     with sqlite3.connect(path) as conn:
         assert conn.execute("SELECT COUNT(*) FROM asset_snapshot_runs").fetchone()[0] == 0
-        assert conn.execute("SELECT COUNT(*) FROM asset_snapshots").fetchone()[0] == 0
+        assert conn.execute("SELECT COUNT(*) FROM account_snapshot").fetchone()[0] == 0
     fetched = assert_ok(api("get_settlement_draft")(draft["id"], db_path=path))
     assert fetched["draft"]["id"] == draft["id"]
     listed = assert_ok(api("list_settlement_drafts")(month="2026-09", db_path=path))
@@ -216,7 +216,7 @@ def test_finalize_persists_immutable_provenance_replays_exact_response_and_confl
     assert conflict == final
     with sqlite3.connect(path) as conn:
         run_count = conn.execute("SELECT COUNT(*) FROM asset_snapshot_runs").fetchone()[0]
-        row_count = conn.execute("SELECT COUNT(*) FROM asset_snapshots").fetchone()[0]
+        row_count = conn.execute("SELECT COUNT(*) FROM account_snapshot").fetchone()[0]
     assert run_count == 1 and row_count >= 1
     assert final["draft_id"] == draft["id"]
     assert final["draft_version"] == draft["version"]
@@ -236,12 +236,12 @@ def test_sqlite_trigger_failure_rolls_back_run_rows_and_completion(tmp_path):
     approved = api("approve_settlement_draft")(draft["id"], draft["version"], review["review_fingerprint"], "approver", "approved", "ref", allow_missing_exclusions=True, db_path=path)
     assert approved.get("success")
     with sqlite3.connect(path) as conn:
-        conn.execute("CREATE TRIGGER fail_snapshot_insert BEFORE INSERT ON asset_snapshots BEGIN SELECT RAISE(ABORT, 'injected failure'); END")
+        conn.execute("CREATE TRIGGER fail_snapshot_insert BEFORE INSERT ON account_snapshot BEGIN SELECT RAISE(ABORT, 'injected failure'); END")
     result = api("finalize_settlement_draft")(draft["id"], draft["version"], review["review_fingerprint"], "failure-key", db_path=path)
     assert result.get("success") is False
     with sqlite3.connect(path) as conn:
         assert conn.execute("SELECT COUNT(*) FROM asset_snapshot_runs").fetchone()[0] == 0
-        assert conn.execute("SELECT COUNT(*) FROM asset_snapshots").fetchone()[0] == 0
+        assert conn.execute("SELECT COUNT(*) FROM account_snapshot").fetchone()[0] == 0
     after = assert_ok(api("get_settlement_draft")(draft["id"], db_path=path))
     assert after["draft"]["status"] == "active"
 
@@ -255,8 +255,8 @@ def test_schema13_migration_is_additive_and_idempotent(tmp_path):
     init_db(path)
     with sqlite3.connect(path) as conn:
         assert conn.execute("SELECT id FROM asset_snapshot_runs WHERE id='legacy-run'").fetchone()[0] == 'legacy-run'
-        assert {r[0] for r in conn.execute("SELECT name FROM sqlite_master WHERE type='table'")} >= {'settlement_drafts','settlement_draft_items','asset_snapshot_runs','asset_snapshots'}
-        assert conn.execute("SELECT value FROM schema_meta WHERE key='schema_version'").fetchone()[0] == '14'
+        assert {r[0] for r in conn.execute("SELECT name FROM sqlite_master WHERE type='table'")} >= {'settlement_drafts','settlement_draft_items','asset_snapshot_runs','account_snapshot'}
+        assert conn.execute("SELECT value FROM schema_meta WHERE key='schema_version'").fetchone()[0] == '16'
 
 
 def test_concurrent_create_and_stale_version_finalization_are_safe(tmp_path):