[#93] Web API + web API test

[Heimdell]

Description

Web API for Coffer + js mocha tests.

Related issue(s)

Fixe3 #93

:white_check_mark: Checklist for your Pull Request

Related changes (conditional)

• Tests

  • [ ] If I added new functionality, I added tests covering it.
  • [ ] If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.

• Documentation

  • [ ] I checked whether I should update the docs and did so if necessary:
  • README
  • Haddock

• Public contracts

  • [ ] Any modifications of public contracts comply with the Evolution of Public Contracts policy.
  • [ ] I added an entry to the changelog if my changes are visible to the users and
  • [ ] provided a migration guide for breaking changes if possible

Stylistic guide (mandatory)

• [ ] My commits comply with the policy used in Serokell.
• [ ] My code complies with the style guide.

[dcastro]

@DK318: Can you please take over this PR?

Here's the plan:

1. Rebase it on main and fix any conflicts
2. Reorganize commits into atomic changes. Right now there's a lot of commits that merely fix or amend previous commits (e.g. "Fixes after rebase", "Add /find test"). I think it would make sense to have these commits (just a suggestion):
   • Implement Web API (Server.hs and API.hs)
   • Add an executable component for the Web API (edits package.yaml, moves the CLI's cli/Main.hs, adds a new server/Main.hs).
   • Add mocha tests for the Web API
3. Add Problem/Solution to each commit, tag each commit with the issue number (I created an issue here: #93)
4. Get the pipeline green
5. Address the comments you and I left on this PR

If any concerns arise, please open a new issue and we'll fix it after #37 is merged. I already opened a few and tagged them with the web-api label, see: https://github.com/serokell/coffer/labels/web-api . This will allow the team to work on them in parallel.

Unless it's a critical issue, in which case we should talk about it and possibly solve it here in this PR.

[DK318]

OK. No problem :smiley:

[sancho20021]

Some new conflicts appeared, as there were recent pushes in main branch :( Would you please resolve them?

[DK318]

@sancho20021 I'll resolve them when I start merging