BASE 44 ORDER: Create breakthrough_cache table with SHA256 lookup and systemd VACUUM timer — E8 Intelligence Research

Andrew's order (Base 44 console): [SELF-BUILD from enhancement #1080] Create breakthrough_cache table with hash_key text PK, result_json jsonb, created_at timestamptz, access_count int. Add SHA256 lookup in agent before LLM call. Index created_at. Add systemd timer for VACUUM ANALYZE every 10min. MERLIN: Understood. I will create the `breakthrough_cache` table with `hash_key` as text primary key, `result_json` as jsonb, `created_at` timestamptz, and `access_count` integer. I will add a SHA256 lookup step in the agent before any LLM call, index `created_at`, and set up a systemd timer to run VACUUM ANALYZE every 10 minutes. The swarm will now execute this build order. Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com