docs: record V8 first-shard results

feat: add V8 topic-filtered results

Add V7 sentence lists and manifests

chore: remove stale duplicate result files

feat: publish V6 results and linked version docs

Add standalone READMEs for each retrieval version

Organize documented V1 to V5 retrieval results

data: publish V4 text-only matches

feat: publish V3 filtered evidence

Include full FineWeb text in V2 evidence

Add V2 tiny-shard evidence

data: publish Monaco V1 filtering results