The bootstrap only needs regular pnpm to install the target package.
@pnpm/exe requires install scripts which we skip with --ignore-scripts.
Also regenerate pnpm-lock.yaml to match current package.json.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Remove the 9MB bundled pnpm.cjs/worker.js and instead use npm ci with
committed package-lock.json files (~5KB) to install a bootstrap pnpm,
which then installs the target version with integrity verification via
the project's pnpm-lock.yaml.
Also switch from ncc to esbuild and modernize to ESM.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>