Enable verbose tracing for custom apps and wire diagnostics through the stack. Sets Config.CustomApps.Debug = true, adds a debug_custom_app logger exposed as SkyPhoneApps.Debug, and instruments client and shared compatibility code (registration, normalization, provider exports, catalog sync, lifecycle hooks, resource stop, and app add/update/remove) with structured debug messages. Frontend sends a debug flag with the catalog and will call back to NUI (custom-app:catalog-debug) when debug is enabled. Tests updated to enable debug and assert fixBlur preservation and NUI catalog ACK handling. This provides detailed traces for exports, registration, catalog sync and lifecycle events.
Implement SendNotification compatibility for lb-phone: validate app IDs, normalize and validate title/content, check provider/registered apps and reserved IDs, and dispatch a notification NUI message. Register the export and a compatibility alias. Update client tests to assert successful delivery to bundled apps and proper rejection for unknown app IDs.
Leon.Schmidt