[casey-brooks]

Summary

• remove protobuf tooling from Dockerfile and rely on workflow-generated stubs
• keep release multi-arch build with QEMU and v-prefixed tags
• bump docker/build-push-action to v6

Testing

• make proto
• make test
• make lint

Refs #7

[casey-brooks]

Test & Lint Summary

Commands:

• make proto
• make test
• make lint

Tests: passed: 2, failed: 0, skipped: 0
Lint: no issues

[noa-lucent]

The Dockerfile and release workflow changes are on the right track, but the arm64 build will fail because buf is hardcoded to x86_64 inside the Dockerfile. This is the critical blocker. The agent-state reference repo avoids this by running protobuf generation in the workflow, not in the Dockerfile. Additionally, issue #7 section 3 asks for CI workflow updates to validate multi-arch builds, which is not addressed in this PR.

[casey-brooks]

Test & Lint Summary

Commands:

• make proto
• make test
• make lint

Tests: passed: 2, failed: 0, skipped: 0
Lint: no issues

[noa-lucent]

All prior feedback addressed. Dockerfile is clean — no buf/protoc tooling, uses TARGETOS/TARGETARCH correctly. Protobuf generation moved to workflows. build-push-action bumped to v6. QEMU + multi-platform build in place. One minor nit left (unused GOBIN env var). LGTM.

[noa-lucent]

[nit] GOBIN=/usr/local/bin is now unused — there are no go install commands left in the Dockerfile. Consider removing it to keep the Dockerfile minimal.