Override terser and babel-traverse deps

[GoodDayForSurf]

• use patches for compatibility systemjs-builder with updated terser and babel-traverse

[Copilot]

Pull request overview

This PR updates dependency resolution and applies targeted pnpm patches to keep systemjs-builder@0.16.15 working with newer terser and to align legacy babel-core@6.26.3 behavior with the @babel/traverse implementation.

Changes:

• Add pnpm overrides to alias babel-traverse to @babel/traverse and to force systemjs-builder to use terser@5.46.2.
• Add pnpm patchedDependencies entries for babel-core@6.26.3 and systemjs-builder@0.16.15.
• Introduce patch files updating systemjs-builder minification/sourcemap handling for modern terser and adding defensive guards in babel-core’s shadow-functions plugin.

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated no comments.

File	Description
pnpm-workspace.yaml	Adds overrides for babel-traverse and systemjs-builder>terser, and registers new patched dependencies.
pnpm-lock.yaml	Reflects the new overrides and patch hashes; updates resolved dependency graph accordingly.
patches/systemjs-builder@0.16.15.patch	Refactors lib/output.js minification to use the terser v5 API and make the minification path Promise-based.
patches/babel-core@6.26.3.patch	Adds guards for missing traversal path APIs when running with @babel/traverse-backed NodePath objects.

Files not reviewed (1)

• pnpm-lock.yaml: Generated file