签入版本

tests/contract/test_tablename_snapshot.py

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+"""表名契约快照：守护全部数据库表名（DB_PREFIX + 模块）不变。"""
+import pytest
+
+from tests.contract.helpers import collect_tables, compare_snapshot
+
+pytestmark = pytest.mark.contract
+
+
+def test_tablenames_snapshot():
+    compare_snapshot("tables.json", collect_tables())