fix: ServerEnv 导入路径 ahserver.serverenv（ahserver.__init__ 不导出）

__init__.py

@@ -2,7 +2,7 @@ from sqlor import sor
 
 def get_dbname():
     try:
-        from ahserver import ServerEnv
+        from ahserver.serverenv import ServerEnv
         return ServerEnv().get_module_dbname("scene")
     except Exception:
         return "scense"

scene/init.py

@@ -22,7 +22,7 @@ _SCENE_FIELDS = {
 
 def _get_dbname():
     """取库名（禁止硬编码 DBNAME）。"""
-    from ahserver import ServerEnv
+    from ahserver.serverenv import ServerEnv
     return ServerEnv().get_module_dbname("scene")
 
 
@@ -87,7 +87,7 @@ async def delete_scene(params_kw=None):
 
 async def get_world_options(params_kw=None):
     """世界下拉选项（world 表）。返回 [{value:id, text:name}]。"""
-    from ahserver import ServerEnv
+    from ahserver.serverenv import ServerEnv
     dbname = ServerEnv().get_module_dbname("world")
     async with DBPools().sqlorContext(dbname) as sor:
         recs = await sor.R("world", {"page": 1, "rows": 1000})
@@ -217,7 +217,7 @@ async def import_scenes(params_kw=None):
 def load_scene(env=None):
     """挂载 scene 模块函数到 ServerEnv。"""
     if env is None:
-        from ahserver import ServerEnv
+        from ahserver.serverenv import ServerEnv
         env = ServerEnv()
     env.list_scenes = list_scenes
     env.get_scene = get_scene