Wire all pages to navigation and fix broken links

- Add services, locations, and resources to footer navigation across all pages
- Update footer in 22+ files with consistent navigation structure
- Add service pages: competitive-intelligence, price-monitoring, data-cleaning
- Add location pages: london, manchester, birmingham
- Update all sitemaps (sitemap.php, sitemap.xml, sitemap-services.xml, sitemap-index.xml)
- Fix broken /contact links (changed to /#contact)
- Fix broken contact.php references (changed to /quote)
- Fix faq-enhanced.php with correct service links
- Fix london.php file permissions (600 -> 644)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

sitemap-index.xml

@@ -4,19 +4,19 @@
     <!-- Main Website Sitemap -->
     <sitemap>
         <loc>https://ukdataservices.co.uk/sitemap.xml</loc>
-        <lastmod>2025-06-08T20:30:00+00:00</lastmod>
+        <lastmod>2025-12-08T12:00:00+00:00</lastmod>
     </sitemap>
 
     <!-- Blog Section Sitemap -->
     <sitemap>
         <loc>https://ukdataservices.co.uk/sitemap-blog.xml</loc>
-        <lastmod>2025-06-08T20:30:00+00:00</lastmod>
+        <lastmod>2025-12-08T12:00:00+00:00</lastmod>
     </sitemap>
 
     <!-- Services Section Sitemap -->
     <sitemap>
         <loc>https://ukdataservices.co.uk/sitemap-services.xml</loc>
-        <lastmod>2025-06-08T20:30:00+00:00</lastmod>
+        <lastmod>2025-12-08T12:00:00+00:00</lastmod>
     </sitemap>
 
 </sitemapindex>