v1.12.8

Bug Fix

Fixed

• Full-corpus fallback now fires when HNSW returns [] (closes #50) — _recall_with_hnsw() returns [] (not None) when the query succeeds but finds zero neighbours. The condition hnsw_memories is None was False for [], silently blocking the full-corpus cosine scan introduced in #49. This is why v1.12.7 SSA R@10 remained 62.5% unchanged. Fix: changed to not hnsw_memories.

Full Changelog: v1.12.7...v1.12.8