0.1.56

Added

• Event entities (event.openclaw_message_received, event.openclaw_tool_invoked) — native HA EventEntity entities that fire on each assistant reply and tool invocation result. Selectable in the automation UI without YAML.
• Button entities — dashboard-friendly buttons for common actions:
  • Clear History — clears in-memory conversation history
  • Sync History — triggers a backend coordinator refresh
  • Run Diagnostics — fires a connectivity check against the gateway
• Select entity (select.openclaw_active_model) — exposes the list of available models from the gateway's /v1/models endpoint, allowing model switching from the HA dashboard. Selection is persisted in config entry options.
• Coordinator now caches the full model list (not just the first model) and exposes it via coordinator.available_models.

Full Changelog: 0.1.55...0.1.56