fix: x-data="window._wsInitData" — IIFE synchrone contourne les bugs Alpine.data/alpine:init

- window._wsInitData = (function() { return {...}; })() — exécution synchrone garantie
- x-data pointe directement sur l'objet global, sans enregistrement Alpine requis
- Contourne les problèmes de timing alpine:init vs Alpine.data vs nested x-data
- 73 tests OK

app/templates/local_workspace.html

@@ -336,7 +336,7 @@
 .preview-leave-end{transform:translateX(100%);opacity:0;}
 </style>
 
-<div class="ws-split" x-data="wsInit"
+<div class="ws-split" x-data="window._wsInitData"
      @dragover.prevent="onDragOver($event)"
      @dragleave="onDragLeave($event)"
      @drop.prevent="onDrop($event)"
@@ -867,8 +867,8 @@
 </div><!-- /ws-split -->
 
 <script>
-document.addEventListener('alpine:init', () => {
-  Alpine.data('wsInit', () => ({
+window._wsInitData = (function() {
+  return {
     tree:[],
     displayTree:[],
     breadcrumb: [],
@@ -2388,7 +2388,7 @@ document.addEventListener('alpine:init', () => {
       this.selectedIdsCount = Object.keys(this.selectedIds).length;
     }
 
-  }))
-})
+  };
+})();
 </script>
 {% endblock %}