• Merge pull request #1068 from kaitranntt/kai/chore/ci-contributor-friendly
• perf(test-bucket): only serialize slow bucket, parallelize fast
• docs(test-bucket): document slowTests addition criteria
• docs: remove maintainer-only runner info from contributor docs
• fix(ci): keep fast bucket stable for commonjs tests
• fix(ci): tighten slow bucket guardrails
• fix(ci): address reviewer follow-up findings
• test(ci): cover pr workflow coverage
• docs(contrib): align local gate shortcuts
• fix(ci): keep release workflows on full test coverage
• docs(contrib): clarify CI lanes and parity gates
• test(ci): cover push quality workflow
• chore(ci): split dev quality checks from release automation