spectral.rs: remove print_summary, to_embedding, save_embedding, nearest_neighbors, unlinked_neighbors, dominant_dimensions, SpectralResult, shorten_key. Core functions (load_embedding, nearest_to_seeds_weighted, analyze_positions, etc.) kept. identity.rs: remove context_file_info (zero callers). Co-Authored-By: Proof of Concept <poc@bcachefs.org>