refactor: migrate service_api and inner_api to sessionmaker pattern (#34379)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/controllers/inner_api/plugin/wraps.py

@@ -6,7 +6,7 @@ from flask import current_app, request
 from flask_login import user_logged_in
 from pydantic import BaseModel
 from sqlalchemy import select
-from sqlalchemy.orm import Session
+from sqlalchemy.orm import sessionmaker
 
 from extensions.ext_database import db
 from libs.login import current_user
@@ -33,7 +33,7 @@ def get_user(tenant_id: str, user_id: str | None) -> EndUser:
         user_id = DefaultEndUserSessionID.DEFAULT_SESSION_ID
     is_anonymous = user_id == DefaultEndUserSessionID.DEFAULT_SESSION_ID
     try:
-        with Session(db.engine) as session:
+        with sessionmaker(db.engine, expire_on_commit=False).begin() as session:
             user_model = None
 
             if is_anonymous:
@@ -56,7 +56,7 @@ def get_user(tenant_id: str, user_id: str | None) -> EndUser:
                     session_id=user_id,
                 )
                 session.add(user_model)
-                session.commit()
+                session.flush()
                 session.refresh(user_model)
 
     except Exception:

api/controllers/service_api/app/conversation.py

@@ -3,7 +3,7 @@ from typing import Any, Literal
 from flask import request
 from flask_restx import Resource
 from pydantic import BaseModel, Field, TypeAdapter, field_validator, model_validator
-from sqlalchemy.orm import Session
+from sqlalchemy.orm import sessionmaker
 from werkzeug.exceptions import BadRequest, NotFound
 
 import services
@@ -116,7 +116,7 @@ class ConversationApi(Resource):
         last_id = str(query_args.last_id) if query_args.last_id else None
 
         try:
-            with Session(db.engine) as session:
+            with sessionmaker(db.engine).begin() as session:
                 pagination = ConversationService.pagination_by_last_id(
                     session=session,
                     app_model=app_model,

api/controllers/service_api/app/workflow.py

@@ -8,7 +8,7 @@ from graphon.enums import WorkflowExecutionStatus
 from graphon.graph_engine.manager import GraphEngineManager
 from graphon.model_runtime.errors.invoke import InvokeError
 from pydantic import BaseModel, Field
-from sqlalchemy.orm import Session, sessionmaker
+from sqlalchemy.orm import sessionmaker
 from werkzeug.exceptions import BadRequest, InternalServerError, NotFound
 
 from controllers.common.schema import register_schema_models
@@ -314,7 +314,7 @@ class WorkflowAppLogApi(Resource):
 
         # get paginate workflow app logs
         workflow_app_service = WorkflowAppService()
-        with Session(db.engine) as session:
+        with sessionmaker(db.engine).begin() as session:
             workflow_app_log_pagination = workflow_app_service.get_paginate_workflow_app_logs(
                 session=session,
                 app_model=app_model,