Embedded Agentic Retrieval (EAR): evaluation dataset and harness

Per-question evaluation records and the reproducible evaluation harness for the study Embedded Agentic Retrieval (EAR): Answer-Quality Parity With Multi-Call Agentic RAG at a Single Generator Call. data/ contains the per-question records (six pipelines across four corpora; a cross-family GPT-4o-mini judge run; a cross-family GPT-4o-mini generation run; ablations; a combined-index multi-document experiment; retriever precision). ear_eval/ contains the Python harness that produced them. Licensing: the data (data/) is licensed CC BY 4.0; the code (ear_eval/) is licensed MIT. This Zenodo record's license field reflects the data license.