refactor(config): retire RuntimeSettingsCompat host usage

app/modules/postgresql/__init__.py

@@ -2,11 +2,9 @@ from typing import Tuple, Union
 
 from app.application.database import get_database_governance
 from app.modules import _ModuleBase
-from app.runtime.settings import RuntimeSettingsCompat
+from app.runtime.settings import get_runtime_setting
 from app.schemas.types import ModuleType, OtherModulesType
 
-settings = RuntimeSettingsCompat()
-
 
 class PostgreSQLModule(_ModuleBase):
     """
@@ -55,7 +53,7 @@ class PostgreSQLModule(_ModuleBase):
         """
         测试模块连接性
         """
-        if settings.DB_TYPE != "postgresql":
+        if get_runtime_setting('DB_TYPE') != "postgresql":
             return None
         error = get_database_governance().test()
         if error: