docs: recommender brief for stalled local-RAG (M0)

Clarify middle position: residual-honest real material, neither lab-clean nor raw dump

Add ardupilot_plane_params config, composition doc, updated baselines

Baseline metrics: baseline_results_summary.json

Baseline metrics: baseline_retrieval_metrics.py

Baseline metrics: README.md

Add BRICK_SPEC.md v1.0 snapshot (manufacturing contract)

Card: brick contract section + link to BRICK_SPEC

Dataset card: design intent — LLM-native knowledge units as differentiator

Initial VF brick retrieval demos (ArduPilot 20q + Skylab 15q)

initial commit