- input_mapper.gd: call set_input_as_handled() before early return on
empty game_id so F5/F6 events don't propagate to other handlers
- session_manager.gd: defer scene change by one frame after buffering
quit-save so SimBridge._process() flushes the outbound buffer
- monologue_display.gd: tag queued notifications with is_notification
flag so drain path routes to _show_notification_line (correct color)
instead of _show_line (lattice-profile fallback color)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>