refactor： 修复sqlmodel的问题

* refactor: overhaul workflow and chat architecture

- Separate Chat and Workflow API endpoints and database models
- Use JSONB to store workflow execution context in Postgres
- Convert workflow engine to use pydantic-ai execution graphs inside a Ray task
- Update frontend React components to support standalone workflow creation
- Remove obsolete and broken workflow runner tests

Co-authored-by: zhaoxi826 <198742034+zhaoxi826@users.noreply.github.com>

* refactor: overhaul workflow and chat architecture

- Separate Chat and Workflow API endpoints and database models
- Use JSONB to store workflow execution context in Postgres
- Convert workflow engine to use pydantic-ai execution graphs inside a Ray task
- Update frontend React components to support standalone workflow creation
- Remove obsolete and broken workflow runner tests

Co-authored-by: zhaoxi826 <198742034+zhaoxi826@users.noreply.github.com>

* refactor: overhaul workflow and chat architecture

- Separate Chat and Workflow API endpoints and database models
- Use JSONB to store workflow execution context in Postgres
- Convert workflow engine to use pydantic-ai execution graphs inside a Ray task
- Update frontend React components to support standalone workflow creation
- Move workflow_engine inside workflow package to keep core root clean
- Remove obsolete and broken workflow runner tests

Co-authored-by: zhaoxi826 <198742034+zhaoxi826@users.noreply.github.com>

* refactor: overhaul workflow and chat architecture

- Separate Chat and Workflow API endpoints and database models
- Use JSONB to store workflow execution context in Postgres
- Convert workflow engine to use pydantic-ai execution graphs inside a Ray task
- Update frontend React components to support standalone workflow creation
- Move workflow_engine inside workflow package to keep core root clean
- Replace sqlmodel with pure sqlalchemy mappings globally
- Remove obsolete and broken workflow runner tests

Co-authored-by: zhaoxi826 <198742034+zhaoxi826@users.noreply.github.com>

---------

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Co-authored-by: zhaoxi826 <198742034+zhaoxi826@users.noreply.github.com>

kilostar/core/postgres_database/module/event.py

@@ -1,4 +1,4 @@
-from sqlmodel import select
+from sqlalchemy import select
 from typing import List, Optional
 from kilostar.core.postgres_database.model.workflow import EventRecord
 from sqlalchemy.ext.asyncio import async_sessionmaker, AsyncSession

kilostar/core/postgres_database/module/individual.py

@@ -13,7 +13,7 @@
 #  limitations under the License.
 
 from kilostar.core.postgres_database.model.individual import WorkerIndividual
-from sqlmodel import select
+from sqlalchemy import select
 from typing import List, Optional
 from kilostar.core.postgres_database.database_exception import database_exception
 

kilostar/core/postgres_database/module/provider.py

@@ -15,7 +15,7 @@
 from typing import List
 
 from kilostar.core.postgres_database.model.provider import Provider
-from sqlmodel import select
+from sqlalchemy import select
 from kilostar.core.postgres_database.database_exception import database_exception
 
 

kilostar/core/postgres_database/module/system_node.py

@@ -13,7 +13,7 @@
 #  limitations under the License.
 
 from kilostar.core.postgres_database.model.system_node import SystemNodeConfig
-from sqlmodel import select
+from sqlalchemy import select
 from typing import List, Optional
 from kilostar.core.postgres_database.database_exception import database_exception
 

kilostar/core/postgres_database/module/user.py

@@ -13,7 +13,7 @@
 #  limitations under the License.
 
 from kilostar.core.postgres_database.model.user import User
-from sqlmodel import select
+from sqlalchemy import select
 from kilostar.utils.error import UserNotExistError, UserPasswordError
 from kilostar.core.postgres_database.database_exception import database_exception
 from kilostar.core.postgres_database.model.user import UserAuthority

kilostar/core/postgres_database/postgres.py

@@ -18,7 +18,7 @@ import asyncio
 import ray
 from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession
 from sqlalchemy.orm import sessionmaker
-from sqlmodel import SQLModel
+from kilostar.core.postgres_database.model.base import BaseDataModel
 
 from .module.individual import IndividualDatabase
 from .module.event import EventDatabase
@@ -64,7 +64,7 @@ class PostgresDatabase:
         Returns:         (None): 经由当前业务模型加工处理后所输出的具体数据实例或领域模型对象。"""
         try:
             async with self.async_engine.begin() as conn:
-                await conn.run_sync(SQLModel.metadata.create_all)
+                await conn.run_sync(BaseDataModel.metadata.create_all)
         except Exception as e:
             # Provide a warning if the database is not accessible, allowing
             # the app to start up for development/UI tests without crashing immediately.