Merge upstream 1.106.0 into Positron

[jmcphers]

Updates Positron with changes from VS Code October 2025:

https://code.visualstudio.com/updates/v1_106

Addresses #10349.

Release Notes

New Features

• Update Positron to upstream Code OSS 1.106.0 (Merge 1.106 from upstream into Positron #10349).

[github-actions]

E2E Tests 🚀
This PR will run tests tagged with: @:critical

^{readme  valid tags}

[juliasilge]

I made a dev build and am running into a few problems 😅

I have not been able to reproduce the kernel supervisor crash (just happened one time), but the problem with Copilot seems to be real. It looks to me like I successfully connect/auth and I am getting completions, but I see this error when trying to use chat:

No language models available for chat. Please ensure you have logged into Anthropic as a language model provider by clicking Configure Model Providers... or running the command Positron Assistant: Configure Language Model Providers and authenticating with Anthropic.

I am not currently authenticated to Anthropic. This is after I blew away my dev build state so I was in a very fresh situation.

I am seeing the message "Cmd click to launch VS Code Native REPL" in the Python console about one out of every 5 times I am starting it, but that code is in extensions/positron-python so I don't see how it can be related to this upstream merge.

[jmcphers]

Is it possible your dev build doesn't have the updated version of the chat extension? (did you git submodule update after sync but before npm install)?

[juliasilge]

I just did some massive clearing of state and rebuilding as freshly as possible, including git submodule update:

and I do still see problems using Copilot for chat:

[midleman]

I’ve noticed that the blob reports generated during the e2e tests (specifically in this PR) are quite large. For instance, merging these reports together can take up to 13 minutes because each report is multiple gigabytes in size. On the main branch, this typically takes only about 1 minute. If we restore the changes from this dir back to our current state, I believe it will resolve the issue: test/e2e/infra.

[jmcphers]

@midleman

If we restore the changes from this dir back to our current state

thanks! Done: 87683a8

[juliasilge]

It turns out that my problem was that on my brand new computer, I had never done this part of our machine setup:

git submodule update --init --recursive

Apologies! 🙈

Now that I have that correctly setup, I am able to make a dev build and Positron is acting as expected, including Copilot chat:

I spot-checked behavior in the console, Quarto files, Data Explorer, etc.

[timtmok]

LGTM