feat: add native meal cook selector

server/routes/meals.js

@@ -87,6 +87,14 @@ function saveCookAssignment(meal, cookUserId, sourcePlanId, createdBy) {
   `).run(meal.id, cookUserId, meal.date, meal.meal_type, sourcePlanId || null, createdBy);
 }
 
+function syncCookAssignmentSlot(meal) {
+  db.get().prepare(`
+    UPDATE planned_meal_cooks
+    SET planned_for_date = ?, meal_type = ?, updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now')
+    WHERE meal_id = ?
+  `).run(meal.date, meal.meal_type, meal.id);
+}
+
 // --------------------------------------------------------
 // Routen - Mahlzeiten-Vorschläge (vor dynamischen Routen!)
 // --------------------------------------------------------
@@ -321,6 +329,8 @@ router.put('/:id', (req, res) => {
 
     if (vCookUserId.present) {
       saveCookAssignment(updated, vCookUserId.value, vSourcePlanId.value, req.session.userId);
+    } else {
+      syncCookAssignmentSlot(updated);
     }
 
     const ings = db.get().prepare(