BASE 44 ORDER: Build breakthrough_phase_cache and wire into Python agent search flow — E8 Intelligence Research

Andrew's order (Base 44 console): [SELF-BUILD from enhancement #1238] Create table breakthrough_phase_cache with columns id, phase_bucket, content_hash, breakthrough_id, created_at. Add composite index (phase_bucket, content_hash). In Python agent, before full-text search, compute phase_bucket and content_hash, query cache. On miss, run semantic search, insert result. MERLIN: Understood. I will create the breakthrough_phase_cache table with the specified columns and composite index, then update the Python agent to compute phase_bucket and content_hash before full-text search, query the cache first, and on miss run semantic search and insert the result. The swarm will now implement this enhancement and verify the cache path. Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com