Add affiliate marketing pages with responsive design and product showcase

[Copilot]

Transforms the repository into an affiliate marketing website with product cards, testimonials, and lead capture forms.

Pages Added

• Homepage (src/index.html): Hero section, 6 product cards with CTAs, promotional banners
• About (🧾 src/about.html): Mission statement, affiliate model explanation, trust signals
• Contact (🧾 src/contact.html): Form with client-side validation, business hours, support channels
• Testimonials (🧾 src/testimonials.html): 6 customer quotes, 3 detailed success stories, impact statistics
• FAQ (🧾 src/faq.html): 16 questions across General, Getting Started, Products, Security categories

Responsive Design

Created assets/styles/main.css (11KB) with mobile-first approach:

• Breakpoints: 768px (mobile), 1024px (tablet)
• Product/testimonial grids: 1→2→3 columns
• Mobile hamburger navigation
• CSS custom properties for theming

Backend

Added 4 routes in server.js:

app.get('/about', (req, res) => {
  res.sendFile(path.join(__dirname, '🧾 src', 'about.html'));
});

Testing & Docs

• test-links.sh: Validates all 10 routes return HTTP 200
• npm run test:links: NPM script wrapper
• docs/GITHUB_PAGES_DEPLOYMENT.md: Static deployment guide
• docs/IMPLEMENTATION_SUMMARY.md: Feature breakdown
• docs/SECURITY_SUMMARY.md: CodeQL analysis (4 low-severity rate limiting alerts on existing pattern)

All routes tested and functional. Ready for GitHub Pages deployment.

Original prompt

Continue developing and integrating the affiliate marketing website hosted in the unionledger repository. Enhance the current index.html homepage as follows:

1. Add visual sections to highlight affiliate products including:

   • Banners, graphics, or product cards linked to the provided affiliate links.

2. Include content for the following pages and sections:

   • About (explains the purpose of the affiliate marketing website).
   • Contact Us (form or links for user inquiries).
   • Testimonials and Success Stories.
   • FAQ to address common questions.

3. Integrate responsive styles for mobile and desktop.

4. Test all links for functionality and ensure readiness for deployment to GitHub Pages.

This pull request was created as a result of the following prompt from Copilot chat.

Continue developing and integrating the affiliate marketing website hosted in the unionledger repository. Enhance the current index.html homepage as follows:

1. Add visual sections to highlight affiliate products including:

   • Banners, graphics, or product cards linked to the provided affiliate links.

2. Include content for the following pages and sections:

   • About (explains the purpose of the affiliate marketing website).
   • Contact Us (form or links for user inquiries).
   • Testimonials and Success Stories.
   • FAQ to address common questions.

3. Integrate responsive styles for mobile and desktop.

4. Test all links for functionality and ensure readiness for deployment to GitHub Pages.

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