Tutorial slugs now match their content:
- retrieval-quality/ -> ann-recall/ (alias preserves the old published path)
- retrieval-quality-golden-set/ -> retrieval-relevance/
- retrieval-quality-pipeline-output/ -> pipeline-output-quality/
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Splits the three retrieval-evaluation tutorials across two sections.
ANN Recall (Web UI, language-agnostic) stays under Search Engineering.
The two Python ecosystem tutorials (ranx, ragas) move to a new top-level
Improve Search section under the Ecosystem partition.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Dylan Couzon