feat(exclusions): Implement component exclusion system (Plan 99.11)

Adds ability to exclude components from specific:
- Categories (by slug or term_id)
- Post/Page IDs
- URL patterns (substring or regex)

Architecture:
- Domain: Value Objects (CategoryExclusion, PostIdExclusion,
  UrlPatternExclusion, ExclusionRuleSet) + Contracts
- Application: EvaluateExclusionsUseCase +
  EvaluateComponentVisibilityUseCase (orchestrator)
- Infrastructure: WordPressExclusionRepository,
  WordPressPageContextProvider, WordPressServerRequestProvider
- Admin: ExclusionFormPartial (reusable UI),
  ExclusionFieldProcessor, JS toggle

The PageVisibilityHelper now uses the orchestrator UseCase that
combines page-type visibility (Plan 99.10) with exclusion rules.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Admin/Shared/Infrastructure/Ui/Assets/Js/exclusion-toggle.js

@@ -0,0 +1,31 @@
+/**
+ * Toggle para mostrar/ocultar reglas de exclusion en FormBuilders
+ *
+ * Escucha cambios en checkboxes con ID que termine en "ExclusionsEnabled"
+ * y muestra/oculta el contenedor de reglas correspondiente.
+ *
+ * @package ROITheme\Admin
+ */
+(function() {
+    'use strict';
+
+    function initExclusionToggles() {
+        document.querySelectorAll('[id$="ExclusionsEnabled"]').forEach(function(checkbox) {
+            // Handler para cambios
+            checkbox.addEventListener('change', function() {
+                const prefix = this.id.replace('ExclusionsEnabled', '');
+                const rulesContainer = document.getElementById(prefix + 'ExclusionRules');
+                if (rulesContainer) {
+                    rulesContainer.style.display = this.checked ? 'block' : 'none';
+                }
+            });
+        });
+    }
+
+    // Inicializar cuando DOM este listo
+    if (document.readyState === 'loading') {
+        document.addEventListener('DOMContentLoaded', initExclusionToggles);
+    } else {
+        initExclusionToggles();
+    }
+})();