feat(tasks): add archive button in list cards

public/locales/en.json

@@ -153,6 +153,7 @@
     "markDone": "Mark {{title}} as done",
     "markOpen": "Mark {{title}} as open",
     "editButton": "Edit task",
+    "archiveButton": "Archive task",
     "swipeOpen": "Reopen",
     "swipeDone": "Done",
     "swipeEdit": "Edit",
@@ -163,6 +164,7 @@
     "savedToast": "Task saved.",
     "createdToast": "Task created.",
     "deletedToast": "Task deleted.",
+    "archivedToast": "Task archived.",
     "loadError": "Task could not be loaded.",
     "subtaskPrompt": "Subtask:",
     "kanbanOpen": "Open",

public/locales/pt.json

@@ -153,6 +153,7 @@
     "markDone": "Marcar {{title}} como concluído",
     "markOpen": "Marcar {{title}} como pendente",
     "editButton": "Editar tarefa",
+    "archiveButton": "Arquivar tarefa",
     "swipeOpen": "Abrir",
     "swipeDone": "Concluído",
     "swipeEdit": "Editar",
@@ -163,6 +164,7 @@
     "savedToast": "Tarefa salva.",
     "createdToast": "Tarefa criada.",
     "deletedToast": "Tarefa excluída.",
+    "archivedToast": "Tarefa arquivada.",
     "loadError": "Falha ao carregar a tarefa.",
     "subtaskPrompt": "Subtarefa:",
     "kanbanOpen": "Aberto",

public/pages/tasks.js

@@ -209,6 +209,11 @@ function renderTaskCard(task, opts = {}) {
                 aria-label="${t('tasks.editButton')}">
           <i data-lucide="pencil" class="icon-base" aria-hidden="true"></i>
         </button>
+        ${task.status !== 'archived' ? `
+        <button class="btn btn--ghost btn--icon btn--icon-sm" data-action="archive-task" data-id="${task.id}"
+                aria-label="${t('tasks.archiveButton')}">
+          <i data-lucide="archive" class="icon-base" aria-hidden="true"></i>
+        </button>` : ''}
       </div>
 
       ${progress !== null ? `
@@ -1511,6 +1516,16 @@ function wireTaskList(container) {
       }
     }
 
+    if (action === 'archive-task') {
+      try {
+        await api.patch(`/tasks/${id}/status`, { status: 'archived' });
+        window.oikos.showToast(t('tasks.archivedToast'), 'success');
+        await loadTasks(container);
+      } catch (err) {
+        window.oikos.showToast(err.message, 'danger');
+      }
+    }
+
     if (action === 'add-subtask') {
       await handleAddSubtask(target.dataset.parent, container);
     }