[build-tools] Auto-upload embedded bundle after build when opt-in flag is set

[gwdp]

Why

After a native build completes, the JS bundle embedded in the artifact isn't registered with EAS Update, so the diff worker has no base to patch against — the first OTA after install always downloads the full bundle. This phase registers it automatically so patch-based updates work from day one.

Ref ENG-21033

How

• New uploadEmbeddedBundleAsync in packages/build-tools/src/utils/expoUpdatesEmbedded.ts
• After UPLOAD_APPLICATION_ARCHIVE, both iOS and Android builders check EAS_UPDATE_EXPERIMENTAL_UPLOAD_EMBEDDED_BUNDLE and isEASUpdateConfigured before entering the new UPLOAD_EMBEDDED_BUNDLE phase
• Opens the build artifact (IPA / APK / AAB) with StreamZip, extracts main.jsbundle + app.manifest (iOS) or index.android.bundle + assets/app.manifest (Android) to a temp dir, then calls eas update:embedded:upload
• Failures are non-fatal: logged as warnings so the build result is unaffected
• Added UPLOAD_EMBEDDED_BUNDLE phase to BuildPhase enum, display names, and website IDs

Test Plan

• yarn tsc --noEmit && yarn lint && yarn fmt:check pass on packages/eas-cli and packages/build-tools

[linear]

ENG-21033

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 57.35%. Comparing base (27b005e) to head (28b876a).

Additional details and impacted files

@@                             Coverage Diff                              @@
##           gwdp/embedded-update-upload-cmd-skeleton    #3767      +/-   ##
============================================================================
+ Coverage                                     57.29%   57.35%   +0.07%     
============================================================================
  Files                                           909      911       +2     
  Lines                                         39389    39477      +88     
  Branches                                       8245     8268      +23     
============================================================================
+ Hits                                          22563    22638      +75     
- Misses                                        15354    15366      +12     
- Partials                                       1472     1473       +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.

[gwdp]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• [eas-cli] Add eas update:embedded:list command #3722
• [eas-cli] Add eas update:embedded:view command #3721
• [build-tools] Auto-upload embedded bundle after build when opt-in flag is set #3767 👈 (View in Graphite)
• [eas-cli] Add eas update:embedded:upload command #3720
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[github-actions]

✅ Thank you for adding the changelog entry!

[github-actions]

Subscribed to pull request

File Patterns	Mentions
**/*	@douglowder

Generated by CodeMention