first commit

sync_state_machine/domain/units/sync_strategy.py

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+from ...sync_system.strategy import DefaultSyncStrategy
+from ...sync_system.config import StrategyConfig, OrphanAction, UpdateDirection
+from schemas.project_extensions.generator_unit import GeneratorUnitProject
+
+
+class UnitsSyncStrategy(DefaultSyncStrategy[GeneratorUnitProject]):
+    """
+    Units 同步策略（项目扩展）。
+    """
+
+    schema = GeneratorUnitProject
+
+    default_config = StrategyConfig(
+        auto_bind=True,
+        auto_bind_fields=["project_id", "serial_number"],
+        depend_fields={"project_id": "project"},
+        local_orphan_action=OrphanAction.NONE,
+        remote_orphan_action=OrphanAction.NONE,
+        update_direction=UpdateDirection.PUSH,
+    )