refactor(sdk,vscode): extract CLI bundling to dedicated script

- Move CLI bundling logic from build.js to bundle-cli.js in SDK package
- Add bundle:cli script to SDK package.json lifecycle hooks
- Remove redundant Build and Bundle step from workflow (prepackage handles it)
- Add repo build step to prepackage.js to ensure workspace artifacts exist
- Fix Windows workspace symlink issue by running npm install from tmpdir
- Remove lint/typecheck from prepackage (handled elsewhere in CI)

.github/workflows/release-vscode-companion.yml

@@ -195,11 +195,6 @@ jobs:
         run: |-
           npm run release:version -- "${RELEASE_VERSION}"
 
-      - name: 'Build and Bundle'
-        run: |-
-          npm run build
-          npm run bundle
-
       - name: 'Prepare VSCode Extension'
         env:
           UNIVERSAL_BUILD: '${{ matrix.universal }}'