v2.3: trash als eigener Store-Key + saveTrash, in init geladen

src/js/app.js

@@ -6,8 +6,10 @@
 async function init() {
   const savedBoards   = await Store.get('boards');
   const savedSettings = await Store.get('settings');
+  const savedTrash    = await Store.get('trash');
 
   boards = savedBoards ?? getDefaultBoards();
+  trash  = Array.isArray(savedTrash) ? savedTrash : [];
   if (savedSettings) Object.assign(settings, savedSettings);
 
   I18n.init();

src/js/state.js

@@ -5,6 +5,10 @@
 
 let boards = [];
 
+// Papierkorb als EIGENER Store-Key (nicht im boards-Payload), isoliert das Quota-Risiko (CR-04/TRASH-02).
+// Eintrag-Schema: { item, type: 'bookmark'|'board', deletedAt, originBoardId }
+let trash = [];
+
 let settings = {
   compact:       false,
   shortenTitles: false,
@@ -51,6 +55,10 @@ async function saveBoards() {
   await Store.set('boards', boards);
 }
 
+async function saveTrash() {
+  await Store.set('trash', trash);
+}
+
 async function saveSettings() {
   await Store.set('settings', settings);
 }