BASE 44 ORDER: Build breakthrough_cache table with composite index, cache-check function, and 24h purge timer — E8 Intelligence Research

Andrew's order (Base 44 console): [SELF-BUILD from enhancement #1349] Create table breakthrough_cache with columns id, freq_bucket, phi_layer, payload, created_at. Add composite index. Implement Python cache-check function with query_hash. On miss, store MD5(query_text) payload. Add systemd timer to purge entries older than 24h. MERLIN: Understood. I will direct the swarm to create the breakthrough_cache table with the specified columns and composite index, implement the Python cache-check function using query_hash with MD5 payload storage on miss, and add a systemd timer to purge entries older than 24 hours. The build will proceed per enhancement #1349. Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com