The signature-offer-pdf-v18.js script tag's ?v= query string was never
updated across ~9 content commits since the file was created, so browsers
kept serving a stale cached copy indefinitely. All other script/style tags
shared an equally stale v17.7.3 tag. Bumped every tag in index.html to a
single fresh version string so all recent fixes (template selection,
merged addon card, controlLines/extraServices wiring) actually reach users
without a manual hard refresh.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>