Add VenueStep page (wizard step 7) + VenueCard selected prop

- Consolidated 3 baseline steps (venue select + venue detail + venue services) into 1
- CSS Grid venue card layout (1 col mobile, 2 col desktop) with radiogroup ARIA
- VenueCard extended with selected, role, aria-checked, tabIndex props
- Progressive disclosure: venue detail panel + service toggles after selection
- Service toggles via AddOnOption: photo presentation, livestream, recording
- Recording depends on streaming (auto-disabled when streaming off)
- Search input + filter chips for venue filtering
- Results count with aria-live, validation error with role="alert"
- Pre-planning variant with softer copy

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/components/molecules/VenueCard/VenueCard.tsx

@@ -20,8 +20,14 @@ export interface VenueCardProps {
   capacity?: number;
   /** Venue hire price in dollars */
   price?: number;
+  /** Whether this card is the selected venue (brand border + warm bg) */
+  selected?: boolean;
   /** Click handler — entire card is clickable */
   onClick?: () => void;
+  /** HTML/ARIA passthrough for radiogroup patterns */
+  role?: string;
+  'aria-checked'?: boolean;
+  tabIndex?: number;
   /** MUI sx prop for style overrides */
   sx?: SxProps<Theme>;
 }
@@ -57,13 +63,32 @@ const CONTENT_GAP = 'var(--fa-venue-card-content-gap)';
  * ```
  */
 export const VenueCard = React.forwardRef<HTMLDivElement, VenueCardProps>(
-  ({ name, imageUrl, location, capacity, price, onClick, sx }, ref) => {
+  (
+    {
+      name,
+      imageUrl,
+      location,
+      capacity,
+      price,
+      selected = false,
+      onClick,
+      role,
+      'aria-checked': ariaChecked,
+      tabIndex,
+      sx,
+    },
+    ref,
+  ) => {
     return (
       <Card
         ref={ref}
         interactive
+        selected={selected}
         padding="none"
         onClick={onClick}
+        role={role}
+        aria-checked={ariaChecked}
+        tabIndex={tabIndex}
         sx={[
           {
             overflow: 'hidden',