What's Changed
- docs: Concepts section + AgentDeck brand by @sagi5060 in #55
- feat(engines): openai-agents adapter + sqlite event store (M0 step 3) by @sagi5060 in #56
- feat(engines): langgraph adapter + status persistence (M0 step 4) by @sagi5060 in #58
Full Changelog: v2.0.0b1...v2.0.0b2
