Fix the last 1,370 broken internal links, empty PT page and canonicals

Broken internal links: 1,370 -> 0 occurrences.
- 1,068 resolved context-aware: the same dead path needs a different destination on
  each locale, so resolution is per (page, target), not per string. Old-site routes
  (/contacto/, /servicios*, /consultoria*, /implementacion*, /recursos*) go to the
  page's own locale home or /odoo/ hub; legacy /odoo-ai/ paths are rewritten to
  /odoo-ia/; locale pages linking a root slug get their own locale's version.
- 301 remaining point at inline body links to pages that were planned but never
  written (35 locale hosting articles, 5 old /odoo-ai/ slugs, dead sections). Those
  fall back to the same-language section hub rather than 404.

Empty PT page: pt/odoo-ia/odoo-sistema-reservas-booking-ia-2025/ was 0 bytes and
returned an empty 200 from the PT sitemap. Removed it, its <url> block and every
hreflang alternate pointing at it; the 5 PT pages that linked to it now point at
/pt/odoo-ia/.

Canonicals: 23 relative -> absolute (a relative canonical carries no host, and apex
and www both answer 200). 62 pages had a second canonical added in the previous pass
because theirs was written href-first; duplicates removed, every page now has
exactly one. 404.html deliberately has none.

English homepage: title, description and H1 aligned to the 'odoo experts' query.

en/index.html

@@ -3,12 +3,12 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta name="description" content="Professional Odoo ERP services for global businesses. Implementation, customization, and technical support with 280% ROI guaranteed. - En | EN">
+    <meta name="description" content="Odoo Experts: ERP implementation, customisation and managed Odoo hosting for growing companies. Practical guides for Odoo 19 and 20.">
     <meta name="keywords" content="Odoo ERP, Odoo Implementation, ERP Consulting, Business Software, Process Automation, Digital Transformation">
     <meta name="author" content="Apex AI Research Labs LLC">
     <meta name="google-site-verification" content="tOsk9rzJjNNP1cAgXGfQH_6Li9pGc4qy4LaSwQ-ADng" />
     <link rel="canonical" href="https://www.odoo-expertos.com/en/">
-    <title>Odoo Experts - Professional ERP Consulting | 280% ROI</title>
+    <title>Odoo Experts — Odoo ERP Implementation, Setup & Hosting</title>
 
     <!-- Hreflang Tags -->
     <link rel="alternate" hreflang="es" href="https://www.odoo-expertos.com/" />
@@ -176,7 +176,7 @@
         <div class="container">
             <div class="hero-content">
                 <div class="hero-text">
-                    <h1>Transform Your Business with <span style="color: var(--white);">Odoo ERP</span></h1>
+                    <h1>Odoo Experts: ERP Implementation That Ships</h1>
                     <p>Professional Odoo implementation, customization, and support services. We help businesses achieve <strong style="color: var(--primary-color);">280% ROI</strong> through digital transformation and process automation.</p>
                     <div class="hero-buttons">
                         <a href="#services" class="btn btn-primary">Explore Services</a>