v0.7.0 — Bounded message history

What's new

• Bounded message history queries — prevents memory/token overflow when context grows large. Previously unbounded queries could cause agent crashes and ballooning token usage.
• Ralph complexity estimation — Ralph now estimates iterations needed based on task complexity before starting.
• Startup notification — GhostClaw sends version info to main group on boot.
• Ralph iterations reduced — default dropped from 50 to 10, now configurable.

Bug fixes

• Fixed unbounded message history queries that caused 79% timeout rate during heavy Ralph usage (March 30 incident).