Prevents flooding OpenBrain with near-identical context memories
during long sessions. Uses per-project timestamp file for debounce.
Also includes recent commits in saved context.
Co-Authored-By: Virgil <virgil@lethean.io>
SessionStart: query OpenBrain for recent activity + project context,
inject into Claude's context window on every new session.
Stop: async save session context to OpenBrain when git changes exist.
PreCompact: save working state to OpenBrain before context compaction.
API key read from ~/.claude/brain.key or CORE_BRAIN_KEY env var.
Co-Authored-By: Virgil <virgil@lethean.io>