Switchboard v0.2.1

Patch release fixing a switchboard build regression introduced in v0.2.0.

Fixed

• switchboard build failed on a cold module cache. Once the SDK began importing the TOML parser (for DataTOML), building any rule triggered a module download, and the CLI’s go list invocation folded the go: downloading … stderr progress line into output it parsed for the package’s module path — breaking every build with go list did not return module information. It now parses stdout only. Anyone who hit this on a fresh install should upgrade; no rule changes are required.

All v0.2.0 features (bundle data files, typed data accessors, serve config parity, cross-adapter metrics/status) are unchanged — see the v0.2.0 release.