Initial scaffold: open-memory plugin for OpenCode
- Plugin entry point with hooks: experimental.session.compacting,
experimental.chat.system.transform, event
- Context tracker: SSE-based token tracking per session with
green/yellow/red/critical thresholds
- Tools: memory_context, memory_compact, memory_summary,
memory_sessions, memory_messages, memory_search, memory_plans
- History module: sqlite3 queries + markdown rendering
- Compaction: improved prompt emphasizing self-continuity
- Research docs: ARCHITECTURE.md + opencode-memory reference