feat: 删除oss相关代码

pkg/config/migrations/m006_vision_config.py

pkg/core/app.py

pkg/core/bootutils/deps.py

pkg/core/stages/build_app.py

pkg/core/stages/migrate.py

pkg/oss/__init__.py

pkg/oss/oss.py

pkg/oss/service.py

pkg/oss/services/__init__.py

pkg/oss/services/aliyun.py

pkg/provider/modelmgr/apis/chatcmpl.py

pkg/provider/modelmgr/modelmgr.py

requirements.txt

templates/system.json