Collect staged Android emulator logs

[sjchmiela]

Summary

• add eas/collect_emulator_logs to stop staged logcat streams and copy settled log files into a destination directory
• wire the Maestro function group to collect emulator logs after Maestro tests and before uploading ~/.maestro/tests
• keep missing or already-ended logcat streams non-fatal

Why

Live log files cannot be written directly into ~/.maestro/tests because the artifact tar step can race with files that are still growing. This collects a stable snapshot only after the streams are stopped.

Test plan

• cd packages/build-tools && yarn test collectEmulatorLogs easFunctionGroups startAndroidEmulator AndroidEmulatorUtils

[linear]

ENG-20762 Stream Android emulator logcat from the emulator start

[codecov]

Codecov Report

❌ Patch coverage is 80.48780% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 55.80%. Comparing base (6c0f797) to head (f0cc102).

Files with missing lines	Patch %	Lines
...d-tools/src/steps/functions/collectEmulatorLogs.ts	78.38%	8 Missing ⚠️

Additional details and impacted files

@@                             Coverage Diff                             @@
##           stanley/eng-20762-stage-emulator-logcat    #3628      +/-   ##
===========================================================================
+ Coverage                                    55.50%   55.80%   +0.30%     
===========================================================================
  Files                                          856      853       -3     
  Lines                                        36826    36621     -205     
  Branches                                      7646     7609      -37     
===========================================================================
- Hits                                         20437    20432       -5     
+ Misses                                       16294    16093     -201     
- Partials                                        95       96       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[github-actions]

⏩ The changelog entry check has been skipped since the "no changelog" label is present.