[CI Failure] Flaky: VS Code extension E2E (Linux, workspace-target-proof) shard fails with generic exit code 1, unrelated to PR changes

## Build Information

Build: https://github.com/microsoft/aspire/actions/runs/32550757022
Build error leg or test failing: Tests / Prepare Homebrew installer artifacts / Prepare Homebrew cask / `VS Code extension E2E (Linux, workspace-target-proof)`
Pull request: #19577

## Error Message

```
Process completed with exit code 1. (Run extension E2E tests step failed; job logs unavailable: 'Failed to fetch logs for job'). No TRX test failures extracted.
```

## Description

Flaky: VS Code extension E2E (Linux, workspace-target-proof) shard fails with generic exit code 1, unrelated to PR changes

**Type**: flaky-test

## Occurrences

| Date | Build | Job | PR |
|------|-------|-----|----|
| 2026-08-22 | [32550757022](https://github.com/microsoft/aspire/actions/runs/32550757022) | Tests / Prepare Homebrew installer artifacts / Prepare Homebrew cask | #19577 |
| 2026-08-22 | [32551216411](https://github.com/microsoft/aspire/actions/runs/32551216411) | Tests / Prepare Homebrew installer artifacts / Prepare Homebrew cask | #19494 |
| 2026-08-22 | [32554012820](https://github.com/microsoft/aspire/actions/runs/32554012820) | Tests / Prepare Homebrew installer artifacts / Prepare Homebrew cask | #19516 |
| 2026-08-24 | [32675340121](https://github.com/microsoft/aspire/actions/runs/32675340121) | Tests / Run VS Code extension E2E tests / VS Code extension E2E (Linux, workspace-target-proof) | #19044 |
| 2026-08-24 | [32689591099](https://github.com/microsoft/aspire/actions/runs/32689591099) | Tests / Prepare Homebrew installer artifacts / Prepare Homebrew cask | #19429 |
| 2026-08-24 | [32755490521](https://github.com/microsoft/aspire/actions/runs/32755490521) | Tests / Hosting.Valkey / Hosting.Valkey (ubuntu-latest) | #19613 |
| 2026-08-24 | [32756925219](https://github.com/microsoft/aspire/actions/runs/32756925219) | Tests / Acquisition / Acquisition (windows-latest) | #19592 |
| 2026-08-24 | [32758526447](https://github.com/microsoft/aspire/actions/runs/32758526447) | Tests / Prepare Homebrew installer artifacts / Prepare Homebrew cask | #19590 |
| 2026-08-24 | [32774802376](https://github.com/microsoft/aspire/actions/runs/32774802376) | Tests / Cli / Cli (windows-latest) | #19048 |
| 2026-08-24 | [32781735084](https://github.com/microsoft/aspire/actions/runs/32781735084) | Tests / Infrastructure / Infrastructure (ubuntu-latest) | #19624 |
| 2026-08-25 | [32785638179](https://github.com/microsoft/aspire/actions/runs/32785638179) | Tests / Prepare Homebrew installer artifacts / Prepare Homebrew cask | #19583 |
| 2026-08-25 | [32814771945](https://github.com/microsoft/aspire/actions/runs/32814771945) | Tests / Prepare Homebrew installer artifacts / Prepare Homebrew cask | #18924 |
| 2026-08-25 | [32864200821](https://github.com/microsoft/aspire/actions/runs/32864200821) | Tests / Prepare Homebrew installer artifacts / Prepare Homebrew cask | #19627 |
| 2026-08-25 | [32880916910](https://github.com/microsoft/aspire/actions/runs/32880916910) | Tests / Dashboard / Dashboard (windows-latest) | #19620 |
| 2026-08-25 | [32885558008](https://github.com/microsoft/aspire/actions/runs/32885558008) | Tests / Run VS Code extension E2E tests / VS Code extension E2E (Linux, workspace-target-proof) | #19615 |
| 2026-08-26 | [32994724407](https://github.com/microsoft/aspire/actions/runs/32994724407) | Tests / Run VS Code extension E2E tests / VS Code extension E2E (Linux, workspace-target-proof) | #19702 |

Start by comparing the listed GitHub Actions runs and the VS Code extension E2E (Linux, workspace-target-proof) shard, noting that the reported job logs are unavailable and no TRX failures were extracted. Trace the Run extension E2E tests step and reproduce the shard failure; done means the shard no longer fails with an unexplained exit code 1 across repeated runs, or reports an actionable failure.

Written by the indexing model from the issue text.