fix: 上传接口缺 request 参数致 500；Excel 导入 JSONResponse 解析崩溃

- modules/upload/router.py：三个上传端点补 request: Request 参数，permission_required 可正常取到当前用户
- modules/system/level/service.py：import_level 解析 upload_file 返回的 JSONResponse body 再取 filePath，修复 Excel 导入崩溃
- 实测：uploadImage 上传成功、level 导入 7 条成功；清理测试产生的重复 level 数据

Co-Authored-By: Claude <noreply@anthropic.com>

modules/upload/router.py

@@ -1,4 +1,5 @@
 from fastapi import APIRouter, UploadFile, File
+from starlette.requests import Request
 
 from core.middleware import check_demo
 from core.middleware import permission_required
@@ -12,7 +13,7 @@ router = APIRouter()
 @router.post('/uploadImage', summary='上传图片')
 @permission_required("sys:upload:image")
 @check_demo
-async def upload_image(file: UploadFile = File(...)):
+async def upload_image(request: Request, file: UploadFile = File(...)):
     return await upload.upload_image(file)
 
 
@@ -20,7 +21,7 @@ async def upload_image(file: UploadFile = File(...)):
 @router.post('/uploadFile', summary='上传文件')
 @permission_required("sys:upload:file")
 @check_demo
-async def upload_file(file: UploadFile = File(...)):
+async def upload_file(request: Request, file: UploadFile = File(...)):
     return await upload.upload_file(file)
 
 
@@ -28,7 +29,7 @@ async def upload_file(file: UploadFile = File(...)):
 @router.post('/uploadEditImage', summary='富文本图片上传')
 @permission_required("sys:upload:image")
 @check_demo
-async def upload_edit_image(file: UploadFile = File(...)):
+async def upload_edit_image(request: Request, file: UploadFile = File(...)):
     result = await upload.upload_image(file)
     # 兼容富文本编辑器返回格式
     if result.status_code == 200: