v3.1.0

Small update in relation to DevTools and documentation hygiene. I'll be back next week to continue working on scheduled features I'm excited to share!

Added

• StateStore.get_active_views() - read-only MappingProxyType accessor over the active-view registry.
• /cascadeui DevTools expanded from 9 to 17 subcommands: persistent, scoped, computed, middleware, history, perf, trace, subscribers.
• /cascadeui reset now invalidates @computed caches and selector memoization, and reports per-view exit failure counts.

Breaking

• session_start hook renamed to session_created for grammar consistency.

Fixed

• Action-registry drift across the persistence and undo middleware tables (INSPECTOR_PURGED_STALE and five sibling action types now have consistent entries).