refactor: reorganize startup persistence boundaries

scripts/local_setup.py

@@ -2380,12 +2380,12 @@ def _apply_local_system_config_inner(config_payload: dict[str, Any]) -> None:
         sys.path.insert(0, str(ROOT))
 
     try:
-        from app.startup.database_initializer import prepare_database
+        from app.startup.initializers.database import prepare_database
         from app.db.oper.systemconfig import SystemConfigOper
         from app.schemas.types import SystemConfigKey
         from app.db.session import SessionFactory, async_session_scope
         from app.db.uow import configure_transaction_runners
-        from app.startup.transaction import TransactionalWriteRunner
+        from app.db.adapters.transaction import TransactionalWriteRunner
     except ModuleNotFoundError as exc:
         raise RuntimeError(
             "当前环境尚未安装 MoviePilot 运行依赖，请先执行 moviepilot install deps 或 moviepilot setup"
@@ -2560,7 +2560,7 @@ def _sync_superuser_account_inner() -> None:
         sys.path.insert(0, str(ROOT))
 
     try:
-        from app.startup.database_initializer import prepare_database
+        from app.startup.initializers.database import prepare_database
     except ModuleNotFoundError as exc:
         raise RuntimeError(
             "当前环境尚未安装 MoviePilot 运行依赖，请先执行 moviepilot install deps 或 moviepilot setup"
@@ -3693,7 +3693,7 @@ def run_agent_request(
         sys.path.insert(0, str(ROOT))
 
     try:
-        from app.startup.database_initializer import prepare_database
+        from app.startup.initializers.database import prepare_database
         from app.agent import MoviePilotAgent
         from app.runtime.config import settings
     except ModuleNotFoundError as exc: