Add user-configurable timezone and 12/24-hour preferences, then wire them through settings, runtime snapshots, scheduler payloads, wait handling, notifications, backups, memory, plugin metadata, and frontend formatters.
Keep UTC as the boundary for absolute instants while serializing user-facing dates in the configured or browser-resolved timezone. Preserve scheduler wall-clock inputs in the selected timezone, propagate TZ into desktop/runtime process environments, and restart active desktop sessions when the runtime timezone changes.
Cover the risky paths with timezone regression tests for settings normalization, auto and fixed timezone resolution, scheduler round-trips, memory timestamp conversion, and desktop timezone sync.
- Fix Memory Leaks: Resolved SID retention in _known_sids after disconnection and cleaned up unreferenced broadcast tasks in _schedule_lifecycle_broadcast.
- Unify Dispatching Paths: Unified client and server event dispatching through the process_client_event() method to ensure diagnostic consistency.
- Optimization & Cleanup: Expanded the _OPTION_KEYS whitelist, removed dead code (iter_event_types), and deleted unused websocket exports.
- Robustness: Added handling for None responses in process_client_event to prevent cluttering responses with empty results.
- Testing: Added test cases to verify SID TTL expiration and stale SID cleanup on disconnect.
- Add wildcard pattern matching for websocket events (*, eventPattern compilation)
- Update WebSocketClient.on() to handle wildcard subscriptions with onAny/offAny
- Add send_data helper and set_shared_websocket_manager for global websocket access
- Broadcast cache clear events to frontend via websocket
- Subscribe to wildcard events in sync-store and route to extensions
- Move get_default_value import to function scope in
