05b5207305
- Create SignatureModal.tsx with signature_pad Draw tab (devicePixelRatio scaling, touch-none) - Type tab renders name in Dancing Script cursive via offscreen canvas - Use Saved tab conditionally shown when localStorage has saved signature - Save for later checkbox persists drawn/typed sig to localStorage on confirm - Update SigningPageClient.tsx: import modal, track signedFields as Map<string,string> - Field overlay shows signature preview image after signing - handleSubmit POSTs to /api/sign/[token] and redirects to /sign/[token]/confirmed on 200