Deterministic Blackjack Live GUI v15.10.144 UAT Presentation-only guided setup refinement. - Breadcrumb hierarchy includes MODE -> selected mode. - Major setup transitions flush the visible transcript and redraw breadcrumb/context. - Invalid starting-balance retries flush stale failed attempts and redraw concise error/context. - Player-facing research/lock terminology condensed; authoritative CLI/evidence unchanged. - Session bankroll remains visible during starting-balance setup and Hand 1 transition. - Hand transition hides output.txt/session-lock implementation text from GUI only. - Backend child JVM forced to UTF-8 for pound-sign rendering. - Release baseline fingerprints updated for intentional GUI source/JAR changes.