2.0.3

Maintenance release with refreshed platform binaries and updated Dart development tooling.

• Update build_runner from 2.16.0 to 2.16.1.
• Update test from 1.31.2 to 1.32.0, including test-runner security hardening and reliability fixes.
• Preserve the enforced lockfile, build manifest, and SHA-256 checksums in release archives.

There are no user-facing CLI behavior changes in this release.