ge-hch.5.15.20: integrate director evaluation in inkrunner

[SorraTheOrc]

Summary

• add Director evaluate integration to inkrunner addAIChoice with sync/async support and console logging on rejection
• show 'Evaluating AI choice...' during Director evaluation and silently skip rejected proposals
• require fallback for Director in Node test environment and keep tests aligned

Testing

• npx jest tests/unit/inkrunner.test.js tests/unit/director.test.js --runInBand