chore: Rename to compound-marketplace, update GitHub org

- Renamed every-marketplace to compound-marketplace
- Updated all EveryInc references to kieranklaassen
- Updated owner info in marketplace.json

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/pages/changelog.html

@@ -118,7 +118,7 @@
                 <strong><code>/report-bug</code> command</strong> - New slash command for reporting bugs in the
                 compound-engineering plugin. Provides a structured workflow that gathers bug information
                 through guided questions, collects environment details automatically, and creates a GitHub
-                issue in the EveryInc/every-marketplace repository.
+                issue in the kieranklaassen/compound-marketplace repository.
               </li>
             </ul>
           </div>