Add out of the box support for UXP Debugger for VSCode

[jardicc]

Hi, I created UXP Debugger for VSCode. https://marketplace.visualstudio.com/items?itemName=JaroslavBereza.uxpdebugger&ssr=false#overview

I tried it with Bolt and found out that if this should work by default there are few changes to be made:

1. Bolt "generateBundle()" breaks the sourcemaps #50
2. On rebuild, Bolt will delete the whole directory with the plugin and create it again. The thing is UXP Debugger expects .uxprc file to be located together with manifest.json and file content will change on every plugin load via UDT. So to fix it I would need to exclude this file from deletion.
3. UXP debugger now supports only inlined source maps. So in vite.config.ts would be sourcemap: mode && ["dev", "build"].includes(mode) ? "inline" : false, instead of sourcemap: mode && ["dev", "build"].includes(mode) ? true : false,

I think with these changes, it would provide a really good developer experience.

[jardicc]

I made those adjustments manually, and it looks like this, and it maps well.

[justintaylor-dev]

Thank you for the detailed notes and testing @jardicc!

✅ I've corrected sourcemaps for polyfills so that's working correctly.
✅ I've updated inlined sourcemaps
⏹️ Still have to figure out how to preserve the .uxprc but for now this doesn't seem crucial if you start debug after doing a build / dev

I've also added //# sourceURL=uxp-script:// thanks to https://gist.github.com/vamitul code samples.

See #52 for the latest

While the plugin launches in UDT, UDT sourcemaps work, I can set breakpoints in UDT, I can launch your VS Code Debugger with attached successfully, I'm still unable to set breakpoints in VS Code, it just shows breakpoints as unbound.

Can you confirm if I'm missing any steps? I did notice some errors in the vscode-debugadapter-28933ad0.json

{"tag":"runtime.target","timestamp":1775503051383,"message":"Error setting child environment vars"

Want to make sure I got everything in before merging this PR, thanks!

[jardicc]

Few notes:

• breakpoints should be seen as bound once you attach
• you can't debug in both at the same time. UDT has to be started but the debug inspector window cannot be opened
• when you click file link in VSCode console, does it take you to document you can edit? Or read-only one?
• if you clicked it and now you have one read-only tab and second one editable what assumed file path do you see in both tabs tooltip?

To get sourcemaping match it has to be identical in both.

Rest of my comments are in PR.

[jardicc]

Regarding to this error {"tag":"runtime.target","timestamp":1775503051383,"message":"Error setting child environment vars"

You can ignore it. I target pwa-node but in UXP you cannot set env variables so it fails. It will try it about 200× in short intervals, then give up and ignore. That is vscode-js-debugger trying to pass env variables to UXP which is not possible.