diff --git a/app/startup/modules_initializer.py b/app/startup/modules_initializer.py
index 475d70d6b..b24df9b36 100644
--- a/app/startup/modules_initializer.py
+++ b/app/startup/modules_initializer.py
@@ -40,6 +40,7 @@ from app.application.configuration import (
     RuntimeConfiguration,
     RuntimeSettingsService,
     SystemConfigService,
+    get_configured_system_config,
     TransferRetryConfig,
     configure_runtime_configuration,
     configure_runtime_settings,
@@ -185,7 +186,7 @@ def _build_chain_runtime_context() -> ChainRuntimeContext:
 
 def configure_runtime_data_providers() -> None:
     """在启动组合层装配运行时和外部服务所需的数据库读取能力。"""
-    configure_service_config_reader(lambda key: SystemConfigOper().get(key))
+    configure_service_config_reader(lambda key: get_configured_system_config().get(key))
     configure_module_runtime(lambda: ModuleManager())
     configure_plugin_runtime(lambda: PluginManager())
     configure_service_directory(
@@ -196,9 +197,9 @@ def configure_runtime_data_providers() -> None:
     )
     configure_server_application_services(
         report_service=ServerReportService(
-            config_reader=lambda key: SystemConfigOper().get(key),
-            config_writer=lambda key, value: SystemConfigOper().set(key, value),
-            installed_plugins_provider=lambda: SystemConfigOper().get(
+            config_reader=lambda key: get_configured_system_config().get(key),
+            config_writer=lambda key, value: get_configured_system_config().set(key, value),
+            installed_plugins_provider=lambda: get_configured_system_config().get(
                 SystemConfigKey.UserInstalledPlugins
             ) or [],
             subscribes_provider=lambda: SubscribeOper().list(),
@@ -406,7 +407,7 @@ def user_auth():
     sites_helper = SitesHelper()
     if sites_helper.auth_level >= 2:
         return
-    auth_conf = SystemConfigOper().get(SystemConfigKey.UserSiteAuthParams)
+    auth_conf = get_configured_system_config().get(SystemConfigKey.UserSiteAuthParams)
     status, msg = sites_helper.check_user(**auth_conf) if auth_conf else sites_helper.check_user()
     if status:
         logger.info(f"{msg} 用户认证成功")
@@ -565,6 +566,8 @@ async def init_modules() -> HostRuntime:
     )
     configure_runtime_configuration(host_runtime.configuration)
     configure_runtime_settings(host_runtime.settings)
+    # 先发布系统配置服务，后续启动组合步骤统一复用同一配置端口。
+    configure_system_config(SystemConfigService(repository=SystemConfigOper()))
     # 旧 app.api.data 导入只保留 ABI 转发，正式 API 依赖全部读取 HostRuntime。
     configure_api_data_runtime(api_data)
     configure_runtime_data_providers()
@@ -583,7 +586,6 @@ async def init_modules() -> HostRuntime:
         ),
         user=lambda: UserOper(),
     )
-    configure_system_config(SystemConfigService(repository=SystemConfigOper()))
     configure_outbox_dispatcher(_build_outbox_dispatcher)
     configure_transfer_retry_config(
         lambda: TransferRetryConfig(
@@ -600,7 +602,7 @@ async def init_modules() -> HostRuntime:
     configure_auth_service(
         AuthService(
             users=UserOper(),
-            config=SystemConfigOper(),
+            config=get_configured_system_config(),
             passkeys=PassKeyOper(),
         )
     )
diff --git a/app/startup/plugins_initializer.py b/app/startup/plugins_initializer.py
index 984602df2..6d621a235 100644
--- a/app/startup/plugins_initializer.py
+++ b/app/startup/plugins_initializer.py
@@ -41,7 +41,7 @@ from app.adapters.system.plugin.manifest import dependency_manifest_status
 from app.adapters.system.plugin.package import PluginPackageManager
 from app.adapters.system.host import SystemUtils
 from app.db.oper.plugindata import PluginDataOper
-from app.db.oper.systemconfig import SystemConfigOper
+from app.application.configuration import get_configured_system_config
 from app.db.session import SessionFactory
 from app.db.uow import SqlAlchemyUnitOfWork
 from app.runtime.log import logger
@@ -52,7 +52,7 @@ from app.schemas.types import SystemConfigKey
 
 async def _async_write_plugin_config(key, value):
     """通过数据库操作器异步保存插件运行时配置。"""
-    return await SystemConfigOper().async_set(key, value)
+    return await get_configured_system_config().async_set(key, value)
 
 
 def _delete_plugin_data(plugin_id: str) -> None:
@@ -88,7 +88,7 @@ def configure_plugin_services() -> None:
     configure_plugin_install_reporter(MoviePilotServerHelper.install_plugin_reg)
     configure_site_auth_level_provider(lambda: SitesHelper().auth_level)
     configure_installed_plugins_provider(
-        lambda: SystemConfigOper().get(SystemConfigKey.UserInstalledPlugins) or []
+        lambda: get_configured_system_config().get(SystemConfigKey.UserInstalledPlugins) or []
     )
     configure_plugin_catalog_factory(_build_plugin_catalog)
     configure_plugin_system(PluginSystemServices(
@@ -96,7 +96,7 @@ def configure_plugin_services() -> None:
         package=PluginPackageManager(plugin_helper),
         dependency=PluginDependencyInstaller(
             plugin_helper,
-            installed_plugins_provider=lambda: SystemConfigOper().get(
+            installed_plugins_provider=lambda: get_configured_system_config().get(
                 SystemConfigKey.UserInstalledPlugins
             ) or [],
             plugin_dir=Path(settings.ROOT_PATH) / "app" / "plugins",
@@ -109,10 +109,10 @@ def configure_plugin_services() -> None:
         frozen=SystemUtils.is_frozen,
     ))
     configure_plugin_storage(PluginStorage(
-        read=lambda key: SystemConfigOper().get(key),
-        write=lambda key, value: SystemConfigOper().set(key, value),
+        read=lambda key: get_configured_system_config().get(key),
+        write=lambda key, value: get_configured_system_config().set(key, value),
         async_write=_async_write_plugin_config,
-        delete=lambda key: SystemConfigOper().delete(key),
+        delete=lambda key: get_configured_system_config().delete(key),
         delete_data=_delete_plugin_data,
     ))
 
@@ -123,7 +123,7 @@ def _build_plugin_catalog(manager: PluginManager) -> PluginCatalogService:
     return PluginCatalogService(
         market_loader=client.get_plugins,
         async_market_loader=client.async_get_plugins,
-        installed_plugins_provider=lambda: SystemConfigOper().get(
+        installed_plugins_provider=lambda: get_configured_system_config().get(
             SystemConfigKey.UserInstalledPlugins
         ) or [],
         plugin_mapper=manager._process_plugin_info,
diff --git a/tests/fixtures/architecture/configuration-debt-baseline.json b/tests/fixtures/architecture/configuration-debt-baseline.json
index 6fa9b78f9..f2bf11038 100644
--- a/tests/fixtures/architecture/configuration-debt-baseline.json
+++ b/tests/fixtures/architecture/configuration-debt-baseline.json
@@ -148,60 +148,8 @@
       {
         "file": "app/startup/modules_initializer.py",
         "name": "SystemConfigOper"
-      },
-      {
-        "file": "app/startup/modules_initializer.py",
-        "name": "SystemConfigOper"
-      },
-      {
-        "file": "app/startup/modules_initializer.py",
-        "name": "SystemConfigOper"
-      },
-      {
-        "file": "app/startup/modules_initializer.py",
-        "name": "SystemConfigOper"
-      },
-      {
-        "file": "app/startup/modules_initializer.py",
-        "name": "SystemConfigOper"
-      },
-      {
-        "file": "app/startup/modules_initializer.py",
-        "name": "SystemConfigOper"
-      },
-      {
-        "file": "app/startup/modules_initializer.py",
-        "name": "SystemConfigOper"
-      },
-      {
-        "file": "app/startup/plugins_initializer.py",
-        "name": "SystemConfigOper"
-      },
-      {
-        "file": "app/startup/plugins_initializer.py",
-        "name": "SystemConfigOper"
-      },
-      {
-        "file": "app/startup/plugins_initializer.py",
-        "name": "SystemConfigOper"
-      },
-      {
-        "file": "app/startup/plugins_initializer.py",
-        "name": "SystemConfigOper"
-      },
-      {
-        "file": "app/startup/plugins_initializer.py",
-        "name": "SystemConfigOper"
-      },
-      {
-        "file": "app/startup/plugins_initializer.py",
-        "name": "SystemConfigOper"
-      },
-      {
-        "file": "app/startup/plugins_initializer.py",
-        "name": "SystemConfigOper"
       }
     ],
-    "count": 14
+    "count": 1
   }
 }
diff --git a/tests/fixtures/architecture/dependency-baseline.json b/tests/fixtures/architecture/dependency-baseline.json
index 21780006f..a85878eff 100644
--- a/tests/fixtures/architecture/dependency-baseline.json
+++ b/tests/fixtures/architecture/dependency-baseline.json
@@ -14,7 +14,7 @@
     "workflow_to_db": []
   },
   "edge_count": 6404,
-  "edge_sha256": "08caab762b3882534d0cdf43ea4e0fcaf28c580f5e04537346f742b212854123",
+  "edge_sha256": "850e490b866ed8eeee03515e39a3821c3078f934c622a60d9db5e279bab1bfbb",
   "edges": [
     "app -> app.runtime",
     "app -> app.runtime.compat",
@@ -6176,6 +6176,7 @@
     "app.startup.plugins_initializer -> app.adapters.system.plugin.manifest",
     "app.startup.plugins_initializer -> app.adapters.system.plugin.package",
     "app.startup.plugins_initializer -> app.application",
+    "app.startup.plugins_initializer -> app.application.configuration",
     "app.startup.plugins_initializer -> app.application.plugin",
     "app.startup.plugins_initializer -> app.application.plugin.catalog",
     "app.startup.plugins_initializer -> app.application.plugin.data",
@@ -6184,7 +6185,6 @@
     "app.startup.plugins_initializer -> app.db",
     "app.startup.plugins_initializer -> app.db.oper",
     "app.startup.plugins_initializer -> app.db.oper.plugindata",
-    "app.startup.plugins_initializer -> app.db.oper.systemconfig",
     "app.startup.plugins_initializer -> app.db.session",
     "app.startup.plugins_initializer -> app.db.uow",
     "app.startup.plugins_initializer -> app.foundation",