go build inside the Docker image runs outside the workspace, so server/go.sum
needed the hyperboloide/lk entry that GOWORK resolution was supplying locally.
Caught by the image build, not by go build.
Probed the library before building against it. Two corrections to plan 1:
- PublicKey.ToB32String() returns one value, not (string, error)
- The scheme is ECDSA P-384 with SHA-256, not ed25519 as the spec and plan
claim. Design is unaffected; the prose needs fixing.