Update 2.148

v2.148.0.0BETAMINORRikku

Editor UI overhaul complete (Layers 4-12 of the plan)

• Finalizes EDITOR_UI_OVERHAUL_PLAN.md: killed the inner sidebars that reappeared inside heavy modules (MonsterAiEditor, MonsterEditor) — now a collapsible Expander (Padding="8", no per-item cardSoft); density (radii 18→12, paddings 16→12, Button.nav 14,12→12,8); typography (h1/h2/h3/label/body/muted); 1-line header ~40px (workspace badge + icons); Button.dangerAction + Border.pillDanger + :focus-visible + Border#EmptyState; footer → 1-line status bar; literal colors elevated to tokens (PanelDeepColor, HeroAccentColor, RailHoverBrush...); real iconography (PathIcon + StudioIcons.axaml) on the IconRail and header; 120ms transitions on pointer-over. Build 0 errors

v2.142.0.1