fix(project-management) : reflect saved task immediately in board, list and reopened modal

TaskModal now emits the fresh task returned by the API (same task:read
shape as the collection). The board, my-tasks and archives pages reinject
it into their local state and selectedTask before the background re-fetch,
so the list and a reopened modal no longer show the previous snapshot while
loadData() is still running.

frontend/modules/project-management/pages/projects/[id]/archives.vue

@@ -150,7 +150,13 @@ function openTaskEdit(task: Task) {
     taskDrawerOpen.value = true
 }
 
-async function onSaved() {
+async function onSaved(savedTask?: Task) {
+    // Mise à jour optimiste avant le re-fetch (cf. index.vue) pour éviter le snapshot stale.
+    if (savedTask) {
+        const idx = archivedTasks.value.findIndex(t => t.id === savedTask.id)
+        if (idx !== -1) archivedTasks.value[idx] = savedTask
+        if (selectedTask.value?.id === savedTask.id) selectedTask.value = savedTask
+    }
     await loadData()
 }
 

frontend/modules/project-management/pages/projects/[id]/index.vue

@@ -473,7 +473,16 @@ async function onBulkDelete() {
     await loadData()
 }
 
-async function onSaved() {
+async function onSaved(savedTask?: Task) {
+    // Mise à jour optimiste : la modale se ferme avant la fin du re-fetch, on
+    // réinjecte immédiatement la tâche fraîche renvoyée par l'API pour éviter
+    // que la liste (et un éventuel ré-ouverture de la modale) reste sur l'ancien snapshot.
+    if (savedTask) {
+        const idx = tasks.value.findIndex(t => t.id === savedTask.id)
+        if (idx !== -1) tasks.value[idx] = savedTask
+        else tasks.value.push(savedTask)
+        if (selectedTask.value?.id === savedTask.id) selectedTask.value = savedTask
+    }
     await loadData()
 }