chore: bump release version to 0.1.2

[cafitac]

Summary

• bump ai-crawler release metadata from 0.1.1 to 0.1.2 across package/runtime docs
• update runbook and harness example commands to reference the next published wrapper version
• keep the release guard and publish workflow aligned with the new tag target npm-v0.1.2

Testing

• uv run --extra dev python -m ai_crawler.release.npm_publish --event-name workflow_dispatch --ref-name main
• uv run --extra dev python -m ai_crawler.release.npm_publish --event-name push --ref-name npm-v0.1.2
• bash scripts/check-python.sh
• bash scripts/verify-ai-harness.sh
• npm test
• npm pack --dry-run