feat(tplus): 新增 T+ 只读同步服务与同步管理

backend/tests/unit/test_tplus_task_models.py

@@ -0,0 +1,21 @@
+"""持久化任务需要完整的幂等和重试证据，不能只有运行中的内存对象。"""
+
+from app.models import TPlusSyncBatch
+
+
+def test_批次记录范围重试幂等与报告():
+    table = TPlusSyncBatch.__table__
+    assert {
+        "entity_types_json",
+        "skipped_record_count",
+        "parent_batch_no",
+        "request_key",
+        "requested_by",
+        "audit_result_json",
+    } <= set(table.c.keys())
+    assert table.c.started_at.nullable is True
+
+
+def test_请求键由数据库唯一约束保护():
+    constraints = TPlusSyncBatch.__table__.constraints
+    assert any(c.name == "uk_tplus_sync_batches_request_key" for c in constraints)