[Q]: How to collect coverage from a TypeScript codebase?

### What happened?

I'm trying to collect code coverage from our codebase, that widely uses TypeScript (compiled with `ts_project` targets). However, I'm not able to get `bazel coverage` to work with these targets. No matter how much I try, the `"$(bazel info output_path)/_coverage/_coverage_report.dat"`file is always empty.

I've created a repo with some `js` and some `ts` targets. Please find more info on what works for me and what doesn't from the repo: https://github.com/aapzu/bazel-coverage-not-working-repro

### Version

Development (host) and target OS/architectures:

Output of `bazel --version`: bazel 7.4.0

Version of the Aspect rules, or other relevant rules from your
`WORKSPACE` or `MODULE.bazel` file: https://github.com/aapzu/bazel-coverage-not-working-repro/blob/main/WORKSPACE

Language(s) and/or frameworks involved: TypeScript, JavaScript

### How to reproduce

```shell
https://github.com/aapzu/bazel-coverage-not-working-repro
```

### Any other information?

_No response_

Start by cloning the linked bazel-coverage-not-working-repro repository and running the reported bazel coverage command. Compare the JavaScript and TypeScript targets and inspect why _coverage_report.dat remains empty for the TypeScript targets. Done means identifying a supported correction or documenting the limitation and expected coverage behavior.

Written by the indexing model from the issue text.