Update evaluation.yml

Update evaluation.yml file

fix: align benchmark source labels across site and evaluator

feat: replace evaluation agent spec with standard GitHub Actions workflow

feat: preserve benchmark history during incremental merges

test: lock benchmark merge behavior

feat: make evaluator discovery incremental and deterministic

test: lock incremental discovery contracts

Convert evaluation YAML workflows to GitHub Agentic Workflow (#24)

feat: skip evaluation for unchanged assets that already have benchmark results (#21)

fix: handle skipped run-evaluation, make LLM_API_KEY optional, drop Node 20 action

feat: upgrade Node 20→24 in workflows, add BenchmarkPanel to skill/instruction views

feat: automated evaluation pipeline with benchmarks dashboard

docs(plugins): add superpowers-whetstone README and update clean architecture plugin references

feat: Add mutation testing skill documentation, results dashboard, and changelog