feat(bootcamp): state the 6-seat cohort cap and add the Black Friday call-out (EN)

- bootcamp page: Class size fact row (Limited to 6 participants), a cap line by
  the price, JSON-LD CourseInstance maximumAttendeeCapacity: 6, and a compact
  Black Friday call-out (16-30 Nov 2026, second hosted year + $100 off BF2026,
  six seats) with the landing-page slot left open for olchi
- workshops page: the cap on the bootcamp card and a Class size comparison row
- llms.txt: durable 'limited to six participants per cohort' on the bootcamp line
  (evergreen - no dated Black Friday offer in llms.txt)

workshops/index.html

@@ -553,7 +553,7 @@
             <h3>ODOO ERP Automation Bootcamp</h3>
             <p class="bc-card-price">USD 465.00 &middot; 10 live sessions, 1 hour each</p>
             <p>You leave with a working ERP for your own company: your products, your customers, your quotes, your invoices and your stock in one system you can keep running yourself.</p>
-            <p class="bc-card-format">Live and online, every Thursday 18:00&ndash;19:00 Central Time &middot; One year of hosted Odoo Community Edition included &middot; English</p>
+            <p class="bc-card-format">Live and online, every Thursday 18:00&ndash;19:00 Central Time &middot; One year of hosted Odoo Community Edition included &middot; Limited to 6 participants &middot; English</p>
             <p class="bc-card-cta"><a class="btn btn-brass" href="/odoo-erp-automation-bootcamp/">More Info</a></p>
           </li>
         </ul>
@@ -687,7 +687,7 @@
         <div class="cmp-table-wrap">
           <table class="cmp-table">
             <caption class="bc-sr-only">
-              The two live courses compared on price, length, format, prerequisites and what is included.
+              The two live courses compared on price, length, format, class size, prerequisites and what is included.
             </caption>
             <thead>
               <tr>
@@ -712,6 +712,11 @@
                 <td>Live webinar with Q&amp;A</td>
                 <td>Live and online, Thursdays 18:00&ndash;19:00 Central Time</td>
               </tr>
+              <tr>
+                <th scope="row">Class size</th>
+                <td>&mdash;</td>
+                <td>Limited to 6 participants</td>
+              </tr>
               <tr>
                 <th scope="row">Prerequisites</th>
                 <td>Basic Odoo, basic programming</td>