Additional graceful handling for pixi

[anthonykim1]

In addition to first PR #23937

I've been able to repro aggressive errors of

2024-08-12 13:59:21.087 [error] [Error: spawn pixi ENOENT
	at ChildProcess._handle.onexit (node:internal/child_process:286:19)
	at onErrorNT (node:internal/child_process:484:16)
	at process.processTicksAndRejections (node:internal/process/task_queues:82:21)] {
  errno: -2,
  code: 'ENOENT',
  syscall: 'spawn pixi',
  path: 'pixi',
  spawnargs: [ '--version' ]
}

2024-08-12 13:59:20.794 [error] Reading directory to watch failed [Error: ENOENT: no such file or directory, scandir '/Users/anthonykim/Desktop/vscode-python/.pixi/envs'
	at Object.readdirSync (node:fs:1509:26)
	at t.readdirSync (node:electron/js2c/node_init:2:11418)
	at /Users/anthonykim/.vscode/extensions/ms-python.python-2024.13.2024080901-darwin-arm64/out/client/extension.js:2:583006
	at /Users/anthonykim/.vscode/extensions/ms-python.python-2024.13.2024080901-darwin-arm64/out/client/extension.js:2:583197
	at Array.map (<anonymous>)
	at d.initWatchers (/Users/anthonykim/.vscode/extensions/ms-python.python-2024.13.2024080901-darwin-arm64/out/client/extension.js:2:582915)
	at async d.ensureWatchersReady (/Users/anthonykim/.vscode/extensions/ms-python.python-2024.13.2024080901-darwin-arm64/out/client/extension.js:2:539326)] {
  errno: -2,
  code: 'ENOENT',
  syscall: 'scandir',
  path: '/Users/anthonykim/Desktop/vscode-python/.pixi/envs'
}

even when I dont have pixi in my workspace. Changing the log level on this and adding more wraps around that should give necessary hint/message when needed without crashing program.

[anthonykim1]

This is what it output panel looks with changes in effect: (You wont see the errors mentioned above)

2024-08-12 15:45:20.121 [info] Experiment 'All' is active
2024-08-12 15:45:20.121 [warning] Reading directory failed /Users/anthonykim/Desktop/Skeleton/.pixi/envs
2024-08-12 15:45:20.121 [warning] Dir "/Users/anthonykim/Desktop/Skeleton/.pixi/envs" is not watchable (directory does not exist)
2024-08-12 15:45:20.121 [info] Default formatter is set to null for workspace /Users/anthonykim/Desktop/Skeleton
2024-08-12 15:45:20.121 [info] Starting Environment refresh
2024-08-12 15:45:20.121 [info] Searching for interpreters in posix paths locator
2024-08-12 15:45:20.121 [info] Searching for pyenv environments
2024-08-12 15:45:20.121 [info] Searching for conda environments
2024-08-12 15:45:20.121 [info] Searching for global virtual environments
2024-08-12 15:45:20.121 [info] Searching for custom virtual environments
2024-08-12 15:45:20.121 [info] Finished searching for custom virtual envs: 78 milliseconds
2024-08-12 15:45:20.121 [info] Python interpreter path: ./.venv/bin/python
2024-08-12 15:45:20.121 [info] Finished searching for global virtual envs: 489 milliseconds
2024-08-12 15:45:20.143 [info] > conda info --json
2024-08-12 15:45:20.144 [info] > pixi --version
2024-08-12 15:45:20.144 [warning] Failed to get pixi version
2024-08-12 15:45:20.145 [info] Found: /usr/bin/python3 --> /usr/bin/python3
2024-08-12 15:45:20.145 [info] > hatch env show --json
2024-08-12 15:45:20.145 [info] cwd: .
2024-08-12 15:45:20.191 [warning] could not find a pixi interpreter for the interpreter at /Users/anthonykim/Desktop/Skeleton/.venv/bin/python
2024-08-12 15:45:20.194 [info] > pyenv which python
2024-08-12 15:45:20.194 [info] cwd: .
2024-08-12 15:45:20.213 [info] Found: /usr/local/bin/python3 --> /Library/Frameworks/Python.framework/Versions/3.13/bin/python3.13
2024-08-12 15:45:20.214 [info] > . ./.venv/bin/activate && echo 'e8b39361-0157-4923-80e1-22d70d46dee6' && python ~/Desktop/vscode-python/python_files/printEnvVariables.py
2024-08-12 15:45:20.214 [info] shell: bash
2024-08-12 15:45:20.232 [info] Found: /usr/local/bin/python3.13 --> /Library/Frameworks/Python.framework/Versions/3.13/bin/python3.13
2024-08-12 15:45:20.819 [warning] could not find a pixi interpreter for the interpreter at /Users/anthonykim/Desktop/Skeleton/.venv/bin/python

[eightysteele]

@anthonykim1 (and @karthiknadig) thank you for the work on this. let me know if there's anything i can do from my side to help test out these changes.

ready to merge