feat: stream the stdout using spawn() and show the next start time

[jizusun]

• use spawn() instead of exec() to stream the stdout/stderr
• add the package tzdata so that the TZ is recognized
• push to ghcr.io
• update the description of the Docker Hub page
• push image as latest instead of main (close The docker image tag latest is not pushed #4 )
• add last-success folder to keep the report

Improved logging

Improved UI

[jizusun]

@moufmouf Guess you're on vacation recently 😄
Will you take a look at this PR when you're back?

[moufmouf]

Woah!

This is awesome. I only recently started the project and did not expect a PR so fast on it.

Thanks a lot. Everything looks great to me. I just have one question: I'm not familiar with the ".devcontainer" directory.
What is it used for and how do you use it?

I guess you are using it to set up and work with the environment. If so, would you mind adding a small "Contributing" section in the README explaining your workflow to set up a dev environment with this devcontainer thing?

[jizusun]

Woah!

This is awesome. I only recently started the project and did not expect a PR so fast on it.

Thanks a lot. Everything looks great to me. I just have one question: I'm not familiar with the ".devcontainer" directory. What is it used for and how do you use it?

I guess you are using it to set up and work with the environment. If so, would you mind adding a small "Contributing" section in the README explaining your workflow to set up a dev environment with this devcontainer thing?

Thank you so much for your acknowledgement!
You're right! Let me make it draft and add a little bit more about contributing and then request review from you!