SEO improvements: meta titles, trust badges, schema, cross-linking

- Fix meta titles exceeding 60 chars on property/financial service pages
- Replace keyword-stuffed hero subtitle with natural, user-focused copy
- Add trust badges section (ISO 27001, GDPR, insurance, ratings)
- Add WebPage schema to homepage for better SERP eligibility
- Shorten about page H1 from 74 to 24 characters
- Add related services cross-linking on competitive intelligence page
- Remove obsolete SEO planning files

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

about.php

@@ -223,8 +223,8 @@ $breadcrumbs = [
     <main id="main-content">
     <section class="about-hero">
         <div class="container">
-            <h1>About UK Data Services - Expert Web Scraping & Business Intelligence</h1>
-            <p>Your trusted partner for professional data solutions since 2018</p>
+            <h1>About UK Data Services</h1>
+            <p class="hero-subtitle">Expert Web Scraping & Business Intelligence Team — Trusted Since 2018</p>
         </div>
     </section>