chore: Fix netlify deploy by updating various @babel dependencies.

[jbocce]

Context

Netlify was not auto-deploying to viewer-dev. The reason from Claude being...

 That commit (on May 15, 2026) bumped @babel/preset-env from 7.28.0 → 7.29.5 in the root package.json. The new preset pulled in @babel/plugin-transform-class-static-block@7.28.6, which calls buildNamedEvaluationVisitor from @babel/helper-create-class-features-plugin. That function only exists in 7.28.x of the helper.

  Your current yarn.lock resolved the helper to two versions side-by-side (yarn.lock:194 and yarn.lock:207):

  - 7.28.6 for ^7.18.6 / ^7.21.0 / ^7.28.6
  - 7.27.1 for the bare ^7.27.1 requesters

  On Netlify, --pure-lockfile installs exactly that lock. Yarn 1 hoists 7.27.1 to the top-level node_modules/@babel/helper-create-class-features-plugin/ (because more callers want ^7.27.1), and the newer plugin at the top level resolves up to that older copy → buildNamedEvaluationVisitor is not a function.

Changes & Results

Updated various "@babel/*" packages to "7.29.7".

Testing

Automated tests should pass and Netlify viewer-dev deploy should work.

Checklist

PR

• My Pull Request title is descriptive, accurate and follows the
  semantic-release format and guidelines.

Code

• My code has been well-documented (function documentation, inline comments,
  etc.)

Public Documentation Updates

• The documentation page has been updated as necessary for any public API
  additions or removals.

Summary by CodeRabbit

• Chores
  • Updated the Babel compiler/transpiler toolchain and runtime across the project to 7.29.7, aligning plugins and presets for consistent builds.
  • Updated runtime versions across packages for consistency.
  • Removed unused Babel resolution overrides.

Greptile Summary

This PR fixes the Netlify deploy failure caused by a Yarn 1 hoisting conflict between two co-resolved versions of @babel/helper-create-class-features-plugin (7.27.1 and 7.28.6), which caused buildNamedEvaluationVisitor to be missing at runtime. The fix aligns all direct @babel/* dependencies to 7.29.7 and removes the now-unnecessary resolutions overrides, collapsing the helper to a single lockfile entry.

• All @babel/* devDependencies and @babel/runtime across workspace packages are bumped uniformly to 7.29.7, eliminating the version split that caused the build-time crash.
• Stale resolutions entries for @babel/runtime-corejs2, @babel/plugin-transform-modules-systemjs, and @babel/helper-create-class-features-plugin are removed from root package.json; the helper entry is now correctly consolidated in yarn.lock.

Confidence Score: 5/5

Safe to merge — the change is a targeted version alignment of Babel packages that directly resolves the confirmed Netlify build failure.

All changes are dependency version bumps to a single coherent 7.29.7 baseline. The root cause (split resolution of @babel/helper-create-class-features-plugin) is correctly fixed in yarn.lock. The removed resolutions overrides were workarounds that are no longer needed. No application logic is touched.

No files require special attention.

Important Files Changed

Filename	Overview
package.json	Bumps all @babel/* devDependencies to 7.29.7; removes @babel/runtime-corejs2, @babel/plugin-transform-modules-systemjs, and @babel/helper-create-class-features-plugin from resolutions—only @babel/helper-create-class-features-plugin was the root-cause override, now unified in yarn.lock.
yarn.lock	@babel/helper-create-class-features-plugin is now resolved to a single 7.29.7 entry (fixing the original issue); a minor split on @babel/plugin-transform-modules-systemjs (7.29.4 vs 7.29.7) and @babel/generator (7.27.5 / 7.29.1 / 7.29.7) remain but were already flagged or are lower-risk transitive splits.
platform/app/package.json	@babel/runtime bumped from 7.28.2 to 7.29.7 and @babel/plugin-transform-private-methods bumped to 7.29.7; straightforward version alignment.
platform/core/package.json	@babel/runtime bumped from 7.28.2 to 7.29.7; no structural changes.

Comments Outside Diff (1)

1. yarn.lock, line 1 (link)

   Residual split on @babel/plugin-transform-modules-systemjs

   After this PR, yarn.lock still resolves @babel/plugin-transform-modules-systemjs to two versions: 7.29.4 (for ^7.27.1 / ^7.29.0) and 7.29.7 (for ^7.29.7). The package was removed as a direct dep so it won't sit at the top-level under the old version the way the helper did, but Yarn 1 hoisting could still land one of these ahead of the other for transitive consumers. If any future caller targeting ^7.29.7 gets the wrong copy, you'd hit the same class of runtime mismatch. Bumping the ^7.27.1 / ^7.29.0 aliases to resolve to 7.29.7 as well (or adding a resolutions entry for the package) would close this gap entirely.

   Prompt To Fix With AI

   This is a comment left during a code review.
   Path: yarn.lock
   Line: 1
   
   Comment:
   **Residual split on `@babel/plugin-transform-modules-systemjs`**
   
   After this PR, `yarn.lock` still resolves `@babel/plugin-transform-modules-systemjs` to two versions: `7.29.4` (for `^7.27.1` / `^7.29.0`) and `7.29.7` (for `^7.29.7`). The package was removed as a direct dep so it won't sit at the top-level under the old version the way the helper did, but Yarn 1 hoisting could still land one of these ahead of the other for transitive consumers. If any future caller targeting `^7.29.7` gets the wrong copy, you'd hit the same class of runtime mismatch. Bumping the `^7.27.1` / `^7.29.0` aliases to resolve to `7.29.7` as well (or adding a `resolutions` entry for the package) would close this gap entirely.
   
   How can I resolve this? If you propose a fix, please make it concise.

   Note: If this suggestion doesn't match your team's coding style, reply to this and let me know. I'll remember it for next time!

_{Reviews (2): Last reviewed commit: "chore: Fix netlify deploy by updating va..." | Re-trigger Greptile}

[claude]

Claude Code Review

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[netlify]

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[coderabbitai]

📝 Walkthrough

Walkthrough

This PR upgrades Babel dependencies to 7.29.7 across the OHIF monorepo. @babel/runtime is bumped from 7.28.2 to 7.29.7 in ~25 packages; several packages also align @babel/core, plugins, and presets to 7.29.7. Root package.json removes stale Yarn resolution pins.

Changes

Babel 7.29.7 alignment

Layer / File(s)	Summary
Platform packages @babel/runtime update platform/app/package.json, platform/cli/package.json, platform/core/package.json, platform/i18n/package.json, platform/ui/package.json, platform/ui-next/package.json	Platform subpackages update @babel/runtime and select Babel devDependencies to 7.29.7.
Extensions and modes @babel/runtime update extensions/*/package.json, modes/*/package.json	Many extensions and modes update @babel/runtime to 7.29.7; selected packages (e.g., extensions/usAnnotation, modes/segmentation, modes/usAnnotation) also align @babel/core, plugin, and preset devDependencies to 7.29.7.
Add-on packages and root workspace configuration addOns/externals/devDependencies/package.json, addOns/package.json, package.json	addOns and root workspace consolidate Babel dev toolchain to 7.29.7 and remove obsolete resolutions entries (@babel/runtime-corejs2, @babel/plugin-transform-modules-systemjs).

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• OHIF/Viewers#6047: Updates root package.json Babel resolutions for @babel/helper-create-class-features-plugin; both PRs align Babel versions in resolutions.

Poem

🐰 I hopped through package trees today,
Bumped runtimes, presets — all in play.
Seven twenty-nine across each nest,
Plugins aligned for a cleaner quest.
Build hops onward — carrot-powered sway.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and accurately describes the main change: updating Babel dependencies to fix a Netlify deployment issue.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description check	✅ Passed	The PR description includes all required sections: Context (explaining the Netlify deploy failure), Changes & Results (listing dependency updates), Testing (describing validation approach), and a completed Checklist.

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[coderabbitai]

Actionable comments posted: 0