feat(freelancer-directory): go live — indexable, sitemap + llms, og:image, Plausible, homepage inbound link

- /odoo-community-developers/ no longer noindex,nofollow; title/description/H1 target 'hire odoo developer'
- added og:image + og:image:alt (the page's own hero), twitter summary_large_image
- Plausible snippet copied byte-for-byte as the last thing in <head>
- sitemap.xml + llms.txt entries
- one inbound link: a homepage FAQ card (client-facing, the established FAQ->page pattern)
- relay forms untouched: ODOO_EXPERTS_QUOTE_WEBHOOK / ODOO_EXPERTS_INVITE_WEBHOOK stay empty
- admin page (/admin/) stays noindex and unlinked

index.html

@@ -410,6 +410,10 @@
             <div class="faq-q"><span>Do you have an affiliate program?</span> <i class="fas fa-chevron-down"></i></div>
             <div class="faq-a"><p>No. We believe it is in our best interest to have competitive prices for our shared clients.</p></div>
           </div>
+          <div class="faq-card plausible-event-name=FAQ" onclick="this.classList.toggle('open')">
+            <div class="faq-q"><span>I need a developer for a custom module — where do I find one?</span> <i class="fas fa-chevron-down"></i></div>
+            <div class="faq-a"><p>We keep a directory of independent Odoo freelancers. Each card carries what the freelancer published and their contact details where they published them. <a href="odoo-community-developers/">Browse the Odoo freelancers</a>.</p></div>
+          </div>
         </div>
         <a href="support.html" class="faq-link">Full FAQ &rarr;</a>
       </div>