Normalize organisms, PaymentStep feedback, cross-page spacing fix

- Organism normalize pass: fix FuneralFinderV3 transition timing
  (200ms → 150ms ease-in-out), add autodocs tag to V3 stories
- Navigation: fix logo a11y — div with role="link" → proper <a> tag
- ToggleButtonGroup: add align (start/center) and direction (row/column)
  props, bump description text from text.secondary to text.primary
- PaymentStep: divider under subheading, lock icon alignment, centre-
  aligned payment options, vertical payment method stack, checkbox align
- SummaryStep: save button → text variant (matches other pages), centred
- All wizard pages: heading mb: 1 → mb: 2 for better breathing room
- Style Dictionary: auto-generate tokens.d.ts, fix TS unused imports
- tokens.d.ts: generated type declarations for 398 token exports

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

src/components/pages/ExtrasStep/ExtrasStep.tsx

@@ -145,7 +145,7 @@ export const ExtrasStep: React.FC<ExtrasStepProps> = ({
       sx={sx}
     >
       {/* Page heading */}
-      <Typography variant="display3" component="h1" sx={{ mb: 1 }} tabIndex={-1}>
+      <Typography variant="display3" component="h1" sx={{ mb: 2 }} tabIndex={-1}>
         Optional extras
       </Typography>