Remove Python as selling point throughout site

- about.php: title, subtitle, bio, technical background
- quote.php: title, meta, badge (10+ Years Python → 10+ Years Experience)
- case-studies/index.php: pipeline descriptions
- author-bio.php: fake author roles and bios
- article-footer.php: replace Python article links with actual AI articles
- blog/search.php: replace Python article, remove Python topic tag

includes/article-footer.php

@@ -27,8 +27,8 @@ $related_articles = [
     ],
     'Technology' => [
         [
-            'title' => 'Python Data Pipeline Tools 2025',
-            'slug' => 'python-data-pipeline-tools-2025',
+            'title' => 'AI Automation for Professional Services',
+            'slug' => 'what-is-an-ai-agent-professional-services',
             'category' => 'Technology',
             'read_time' => '12 min read'
         ],
@@ -39,8 +39,8 @@ $related_articles = [
             'read_time' => '8 min read'
         ],
         [
-            'title' => 'Python Scrapy Enterprise Guide',
-            'slug' => 'python-scrapy-enterprise-guide',
+            'title' => 'Document Extraction: PDF to Database',
+            'slug' => 'document-extraction-pdf-to-database',
             'category' => 'Technology',
             'read_time' => '15 min read'
         ]