aaron
50b97e2998
Three refinements to retrieve_context, all keyed off observed failures from test_retrieval.py: - Library/personal split. classify_retrieval_intent now returns (type_filter, folder_exclude_prefixes). Biographical document intent excludes Library/* so philosophy/cognition books stop crowding out CVs and dossiers for queries like "write me a bio". - Near-duplicate collapse. Multi-folder copies of the same file (e.g., several Teaching Philosophy.pdf in different application folders) used to fill the top-N with the same content. Dedup by first-300-chars hash after rerank. - Folder in source citations. Surface metadata.folder alongside basename so the LLM can disambiguate among 21 CV.docx variants and the user can see which copy a citation refers to. Also: bump hnsw.ef_search to 500 when a WHERE filter is present. pgvector 0.6 doesn't iterate past its initial HNSW candidate list, so a restrictive filter that excludes the nearest neighbors otherwise returns empty.