完善模板，加入RPA标准

scripts/service/example_adapter/mock.py

@@ -0,0 +1,24 @@
+"""离线 mock 档位：纯内存仿真，CI / 单测必跑。"""
+
+from __future__ import annotations
+
+from .base import AdapterBase, ExampleItem, ExampleResult
+
+
+class MockAdapter(AdapterBase):
+    name = "mock"
+
+    def do_batch(self, target: str, items: list[ExampleItem]) -> ExampleResult:
+        if not items:
+            return ExampleResult(
+                ok=False,
+                serial_no=None,
+                error_msg="empty batch",
+                artifacts={},
+            )
+        return ExampleResult(
+            ok=True,
+            serial_no=f"MOCK-{len(items)}",
+            error_msg=None,
+            artifacts={"mode": "mock", "target": target, "count": len(items)},
+        )