Feat/pyinstaller

[zzjc1234]

This pr modified canvas_app s.t. the code can be packed with pyinstaller

[linsyking]

Have you tested whether pyinstaller can work on this?

[zzjc1234]

Yes, the exe works well. I disablesd the output in console, I think users may not need it.

[zzjc1234]

The updator may have some unknown problem, but the updator.py should be modified anyway. Maybe I will fix it in another pr.

[linsyking]

For executables the old updater doesn't work because it is based on git

[linsyking]

Maybe we can just remove git update logic when building for executables.

[zzjc1234]

It seems that I didn't solve the dependency well, currently the exe only works under the dir with canvas_mgr.py and etc. I will try to fix it.

[linsyking]

Also we need to migrate some arguments from uvicorn to the executables, eg. the port and base_url

[linsyking]

I think we can remove the updater support. It is not very helpful and needs git dependency.

[linsyking]

do not merge until everything is set

[linsyking]

Please fix the build error.

[linsyking]

I think we should first merge it to the dev branch otherwise current users will be affected