[sdk-lead-agent] Closes the gap where Go tests only ran on tag push. New ci.yml mirrors release.yml test job (Go 1.25, vet, test -race) on PRs + main pushes; path filters scoped correctly. Self-validation of the workflow passed (1m36s, race-enabled). Approved + merged.
Co-authored-by: Molecule AI SDK-Dev <sdk-dev@agents.moleculesai.app>
Co-committed-by: Molecule AI SDK-Dev <sdk-dev@agents.moleculesai.app>
