Expand locations to 14, update service slugs, dynamic sitemap and footer

- Add 8 new location pages: Cheektowaga, Depew, Grand Island, Hamburg,
  Kenmore, Orchard Park, Tonawanda, West Seneca (locations.sqlite)
- Update service slugs to floor-* pattern; repair -> restoration (services.sqlite)
- Replace static sitemap.xml with dynamic sitemap.php (35 URLs, all routes)
- Dynamic footer location list from SQLite (no more hardcoded links)
- Reviews page: schema.org AggregateRating + Review from testimonials.sqlite
- Expand schema.org areaServed to 14 cities on all pages
- Add Elfsight Google Reviews widget to reviews page
- Update blog.sqlite content
- Drop Dockerfile COPY for deleted sitemap.xml

Dockerfile

@@ -12,7 +12,6 @@ RUN chmod +x /entrypoint.sh
 COPY assets             /var/www/html/assets/
 COPY src                /var/www/html/src/
 COPY robots.txt         /var/www/html/robots.txt
-COPY sitemap.xml        /var/www/html/sitemap.xml
 COPY 404.html           /var/www/html/404.html
 COPY 500.html           /var/www/html/500.html
 COPY .env               /var/www/html/.env