modify: 统一插件风格

verify_example_plugin.py

@@ -44,18 +44,19 @@ check("set 后 require 返回同一对象", gv.require("db") is marker)
 check("模块属性 db 已被更新", gv.db is marker)
 
 
-# ========== 2. __init__.py 导入链（router + auto_bind_models）==========
+# ========== 2. __init__.py 导入链（router + Plugin 基类）==========
 import plugins.example as plug
 
 check("plugins.example 导入成功", True)
 check("create_workers 存在", callable(getattr(plug, "create_workers", None)))
 check("cleanup 存在", callable(getattr(plug, "cleanup", None)))
-check("_initialized 默认 False", plug._initialized is False)
+check("plugin 实例存在", getattr(plug, "plugin", None) is not None)
+check("plugin._initialized 默认 False", plug.plugin._initialized is False)
 
 # ========== 3. create_workers 幂等性（mock session/config）==========
 import asyncio
 
-# 用桩替代 _create_workers，避免真实 zenoh 会话
+# 用桩替代 Plugin 基类的 worker 创建实现，避免真实 zenoh 会话
 calls = []
 
 
@@ -64,7 +65,7 @@ def _stub_create_workers(session, config, count=1, worker_manager=None):
     return ["task-stub"]
 
 
-plug._create_workers = _stub_create_workers  # type: ignore[attr-defined]
+plug.plugin._create_workers_impl = _stub_create_workers  # type: ignore[method-assign]
 
 
 async def main():
@@ -73,7 +74,7 @@ async def main():
     # 第一次调用：应初始化 db
     t1 = await plug.create_workers(session="s1", config=cfg, count=2)
     check("首次 create_workers 调用桩", t1 == ["task-stub"])
-    check("_initialized 置 True", plug._initialized is True)
+    check("plugin._initialized 置 True", plug.plugin._initialized is True)
     from plugins.example.global_var import db as gv_db
     check("global_var.db 已初始化", gv_db is not None)
 
@@ -86,7 +87,7 @@ async def main():
 
     # cleanup 后复位
     await plug.cleanup("worker/example/worker-i-1")
-    check("cleanup 后 _initialized 复位 False", plug._initialized is False)
+    check("cleanup 后 plugin._initialized 复位 False", plug.plugin._initialized is False)
     from plugins.example.global_var import db as gv_db3
     check("cleanup 后 db 为 None", gv_db3 is None)