feat: sync latest ARR implementation

tests/test_monthly_publication_migration.py

@@ -0,0 +1,49 @@
+from pathlib import Path
+import unittest
+
+
+PROJECT_ROOT = Path(__file__).resolve().parents[1]
+UP_PATH = PROJECT_ROOT / "database" / "012_monthly_report_publication.sql"
+DOWN_PATH = PROJECT_ROOT / "database" / "012_monthly_report_publication.down.sql"
+
+
+class MonthlyPublicationMigrationTests(unittest.TestCase):
+    def test_forward_migration_is_additive_metadata_only(self) -> None:
+        sql = UP_PATH.read_text(encoding="utf-8")
+
+        for required in (
+            "current_database() <> 'booking_test'",
+            "CREATE SCHEMA reporting",
+            "CREATE TABLE reporting.monthly_runs",
+            "CREATE TABLE reporting.monthly_run_daily_versions",
+            "CREATE TABLE reporting.monthly_channel_manifest",
+            "monthly_runs_one_active_period_idx",
+            "source_snapshot_sha256",
+            "storage_provider IN ('oss', 's3', 'local_fixture', 'local')",
+            "published monthly run requires a continuous reconciled channel manifest",
+            "Greatest ARRIVAL included in this publication",
+        ):
+            with self.subTest(required=required):
+                self.assertIn(required, sql)
+
+        self.assertNotIn("DROP SCHEMA finance", sql)
+        self.assertNotIn("DROP SCHEMA ingestion", sql)
+        self.assertNotIn("CREATE TABLE finance.report_versions", sql)
+        self.assertNotIn("full_name", sql.lower())
+        self.assertNotIn("confirmation_no", sql.lower())
+
+    def test_rollback_refuses_after_publication_data_exists(self) -> None:
+        sql = DOWN_PATH.read_text(encoding="utf-8")
+
+        self.assertIn("current_database() <> 'booking_test'", sql)
+        self.assertIn("SELECT 1 FROM reporting.monthly_runs", sql)
+        self.assertIn("storage_provider = 'local'", sql)
+        self.assertIn(
+            "refusing rollback: monthly publication or controlled local artifact data exists",
+            sql,
+        )
+        self.assertIn("DROP SCHEMA reporting CASCADE", sql)
+
+
+if __name__ == "__main__":
+    unittest.main()