feat: e2e tests for APIs

[vansangpfiev]

engines endpoints:

• engines/install/{1}
• /{1} Delete - uninstall engine
• List engine
• /{1} Get - engine info

models endpoints:

• /pull
• List model
• /get Post - model info
• /update Post
• /import
• /{1} Delete model
• /alias
• /start
• /stop

[freelerobot]

@vansangpfiev , I don't know if this is helpful, as our manual QA haphazardly covers both unit tests and e2e tests. But wanted to make you aware of it, in case there are 1-2 tests in our manual checklist, that's worth including in your API testing module.

[hiento09]

I will be the PIC for the CI runners setting up and CI workflows.

[gabrielle-ong]

Marking as complete - thanks @vansangpfiev and @hiento09