refactor: Add TypeScript support

[fabiovincenzi]

Overview
This PR introduces TypeScript to git-proxy and refactors relevant code to support it.

Changelog

• Added TypeScript configuration (tsconfig.json) with essential settings for strict type checking, ES6 compatibility, and JSX support.
• Added typescript and ts-node to manage TypeScript code compilation and execution.
• Updated the package.json to include TypeScript dependencies.
• Converted the main entry file from JavaScript (index.js) to TypeScript (index.ts).
• Modified the start script to use ts-node for running TypeScript files.

Thanks to @jescalada for the work on fixing CI issues on G-Research#31, which helped guide the necessary changes in this PR.

Related issue: #927

---

Note: Restored from deleted fork

This PR recreates the original PR #929, which was automatically closed due to accidental fork deletion.

** For discussions and reviews:** See the original PR #929

All commits are identical to the original with preserved git history.

[netlify]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.22%. Comparing base (4a0fe55) to head (559c31d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1142   +/-   ##
=======================================
  Coverage   83.22%   83.22%           
=======================================
  Files          66       66           
  Lines        2795     2795           
  Branches      332      332           
=======================================
  Hits         2326     2326           
  Misses        423      423           
  Partials       46       46           

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[jescalada]

Reapproving this - it's a lot easier to see the changes now that merge conflicts have been resolved 👍🏼

@coopernetes @06kellyjac I suppose this could go into the first release candidate for v2? Or should we deal with the few remaining TS PRs and get it all in a single release? #960 #1063 #1065

[06kellyjac]

Yes, moving to providing js and types from dist should be done in v2.
https://github.com/yeoman/generator/blob/main/package.json#L23-L37

Also there's several useful things within git-proxy which we expect people to directly import from files e.g. config, which would break & should be exported properly.

[06kellyjac]

These files don't live in dist due to ./scripts/build-for-publish.sh

[06kellyjac]

considering the majority of commits are just update merges and there's 2 commits with the same message a rebase & cleanup would be ideal

[linux-foundation-easycla]

• ✅ login: fabiovincenzi / name: Fabio Vincenzi (8f18d23, 6c580df, 5d176a2, f04e628, 3e448e2, 773754e, 5e76a44, ff7fa2d, b6b19d0, d2899a7, 529a72f, 50327f6, 9944217, 50a8234, 8a272d8, aed35de, fd2c026, f2ca85d, 9576963, d996d0f, cbf0ce2, 8a1ebcf, ce78cac, 053dba1, 8aa3eda, 5c3ec06, 5e5b507, e835745, d063101, 9bf730e)
• ✅ login: jescalada / name: Juan Escalada (1f1bd6b)
• ✅ login: kriswest / name: Kris West (559c31d)
• ❌ - login: @JamieSlome / name: Jamie Slome . The commit (c1128c4, 5211d0e) is not authorized under a signed CLA. Please click here to be authorized. For further assistance with EasyCLA, please submit a support request ticket.

[jescalada]

Wondering if this is ready to go? 🤔

@fabiovincenzi @06kellyjac

[fabiovincenzi]

Hi @06kellyjac, what do you think about the latest changes?

[finos-admin]

Given that @JamieSlome was covered by the Citi CCLA at the time the commits were made we can ignore the EasyCLA bot in this particular case. A @finos/git-proxy-maintainers should be able to force merge this PR. Please email [email protected] with any questions or concerns.