fossic-similarity-hnsw ships as a new sibling crate with HnswConfig, HnswError, and an HnswProvider skeleton implementing the actual SimilaritySearchProvider trait; BackgroundExecutor, TaskKind::Custom, and SystemStreamWriter are now exported from fossic for use by substrate extensions.
v1.7.02026-06-21
·fossic-similarity-hnsw crate added to workspace — HnswProvider skeleton implements index/query against the real trait (not the brief's assumed add/search); dimension validation fires immediately on both methods
·SystemStreamWriter exported pub from fossic core — sibling crates can now emit system events to _fossic/system with correct WAL discipline