- Support SMTP_USER/SMTP_PASS env vars for authenticated SMTP
- Support SMTP_FROM env var for configurable sender address
- Auto-detect secure mode for port 465
- Backwards compatible: falls back to unauthenticated local relay
- BUG-053: Add terser JS minification to build process
- BUG-060: Add og:image, twitter:card, twitter:image to sub-pages
- BUG-067: Update skip-link to #main-content on all pages
- BUG-055: Remove duplicate preconnect tags from homepage
- BUG-058: Add twitter:image meta tag to homepage
- BUG-060: Add og:title/description/url to sub-pages
- BUG-061: Add /status to sitemap.xml
- BUG-067: Add skip-to-content link on all pages
- BUG-069: Add legal footer to /docs page
- BUG-053: Minify app.js with terser
- BUG-056: Fix sitemap namespace sitemapns.org -> sitemaps.org
- BUG-062: Extend <main> to wrap all page content (hero+features+pricing+EU section)
- BUG-064: Add sr-only <label> elements to all modal form inputs (signup, recovery, change-email)
- BUG-051/052: Remove duplicate X-Content-Type-Options headers from nginx (let helmet handle)
- BUG-057: Fix JSON-LD and pricing card: Pro plan is 2,500 PDFs/month not 5,000
- BUG-059: Add meta description, canonical URL, og: tags to /docs page
- BUG-063: Change eu-hosting h3 to h2 (correct heading hierarchy)
- BUG-065/066: Add aria-modal=true, role=dialog to modals; aria-label=Close to close buttons
- BUG-068: Add hash-based modal open for #change-email on page load
- Add .sr-only CSS utility class to base and index styles
