Refactor: Move equipment price and mandatory status to Categorie relationship

- Created CategorieEquipement entity to act as a join table between Category and Equipment.
- Moved 'obligatoire' and 'prix' (formerly prixContribution) fields from Equipement to the new CategorieEquipement entity.
- Added Flyway migrations V14 and V15 to update the database schema and migrate existing data.
- Updated Categorie UI to use a select dropdown and price input for managing category-specific equipment configurations.
- Replaced 'equipement.obligatoire' and 'equipement.prixContribution' calls with their new category-level equivalents in logic and templates.
- Updated pricing calculation in Licence entity to source prices dynamically from the Categorie configuration.
- Updated Dotation generation logic to sync with category requirements automatically.

as-talange-web/src/main/resources/templates/parametrage/equipements_form.html

@@ -31,18 +31,8 @@
                         <textarea th:field="*{description}" rows="3" class="w-full border border-gray-300 rounded-lg px-4 py-2 text-sm focus:ring-2 focus:ring-blue-500 outline-none"></textarea>
                     </div>
 
-                    <div>
-                        <label class="block text-sm font-medium text-gray-700 mb-1">Prix de contribution (€) - Pour équipement facultatif</label>
-                        <input type="number" step="0.01" th:field="*{prixContribution}" required class="w-full border border-gray-300 rounded-lg px-4 py-2 text-sm focus:ring-2 focus:ring-blue-500 outline-none">
-                        <p class="text-xs text-gray-500 mt-1">Si l'équipement est facultatif, ce montant sera ajouté au tarif global de la licence s'il est commandé.</p>
-                    </div>
 
-                    <div class="flex items-center space-x-3">
-                        <input type="checkbox" id="obligatoire" th:field="*{obligatoire}" class="w-5 h-5 text-blue-600 border-gray-300 rounded focus:ring-blue-500">
-                        <label for="obligatoire" class="text-sm font-medium text-gray-700">
-                            Cet équipement est obligatoire pour tous les licenciés (inclus dans la licence)
-                        </label>
-                    </div>
+
 
                     <div class="pt-4 flex justify-end space-x-3 border-t border-gray-100">
                         <a th:href="@{/equipements}" class="px-4 py-2 text-sm font-medium text-gray-700 border border-gray-300 rounded-lg hover:bg-gray-50">Annuler</a>