- New docs/(root)/migration-guides/ section with migrate-to-v2, migrate-attachments,
migrate-to-1.10.X, migrate-to-1.8.2
- Troubleshooting now only contains error-debugging, observability-connectors, common-issues
- Update all @deprecated JSDoc URLs from /troubleshooting/ to /migration-guides/
- Update doc cross-links (multimodal-attachments page, snippet import)
- Move snippet to snippets/shared/migration-guides/
- Set minimum version to v1.56.0 (was vX.Y.Z placeholder)