refactor: unify host threadpool boundary

app/api/endpoints/agent.py

@@ -14,9 +14,9 @@ from typing import Any, AsyncIterator, Awaitable, Callable, Optional, Union
 
 import aiofiles
 from fastapi import Depends, File, Form, HTTPException, Request, UploadFile, status
-from fastapi.concurrency import run_in_threadpool
 from fastapi.responses import FileResponse, StreamingResponse
 
+from app.runtime.execution import run_in_threadpool
 from app.schemas.agent import AgentChatDisplaySaveRequest as _SchemaAgentChatDisplaySaveRequest
 from app.schemas.agent import AgentChatSessionDetail as _SchemaAgentChatSessionDetail
 from app.schemas.agent import AgentChatSessionSummary as _SchemaAgentChatSessionSummary

app/api/endpoints/dashboard.py

@@ -2,8 +2,8 @@ from pathlib import Path
 from typing import Any, List, Optional, Annotated
 
 from fastapi import Depends
-from fastapi.concurrency import run_in_threadpool
 
+from app.runtime.execution import run_in_threadpool
 from app.schemas.dashboard import DashboardMemoryInfo as _SchemaDashboardMemoryInfo
 from app.schemas.dashboard import DashboardSystemInfo as _SchemaDashboardSystemInfo
 from app.schemas.dashboard import DownloaderInfo as _SchemaDownloaderInfo

app/api/endpoints/plugin.py

@@ -6,10 +6,10 @@ from typing import Annotated, Any, Dict, List, Optional
 import aiofiles
 from anyio import Path as AsyncPath
 from fastapi import Depends, Header, HTTPException, Security
-from fastapi.concurrency import run_in_threadpool
 from starlette import status
 from starlette.responses import StreamingResponse
 
+from app.runtime.execution import run_in_threadpool
 from app.schemas.common import JsonObject as _SchemaJsonObject
 from app.schemas.plugin import Plugin as _SchemaPlugin
 from app.schemas.plugin import PluginDashboard as _SchemaPluginDashboard