feat: Update user authentication data and enhance routine item handling in RoutineEditView

frontend/src/components/routine/RoutineEditView.vue

@@ -372,12 +372,23 @@ async function handleSubmit(form: { name: string; points: number; image_id: stri
     })
     if (!resp.ok) throw new Error('Failed to save routine')
     const routineData = await resp.json()
-    const routineId = routineData.id || props.id
+    const routineId =
+      props.id ||
+      (typeof routineData?.id === 'string' && routineData.id) ||
+      (typeof routineData?.routine?.id === 'string' && routineData.routine.id) ||
+      ''
+
+    if (!routineId) {
+      throw new Error('Failed to resolve routine id after save')
+    }
 
     for (const itemId of removedItemIds.value) {
-      await fetch(`/api/routine/${routineId}/item/${itemId}`, {
+      const deleteResp = await fetch(`/api/routine/${routineId}/item/${itemId}`, {
         method: 'DELETE',
       })
+      if (!deleteResp.ok) {
+        throw new Error('Failed to delete routine item')
+      }
     }
 
     for (const item of items.value) {
@@ -385,17 +396,23 @@ async function handleSubmit(form: { name: string; points: number; image_id: stri
       const payload = { name: item.name, image_id: resolvedImageId, order: item.order }
 
       if (item.id?.startsWith('temp-') || !item.id) {
-        await fetch(`/api/routine/${routineId}/item/add`, {
+        const addItemResp = await fetch(`/api/routine/${routineId}/item/add`, {
           method: 'PUT',
           headers: { 'Content-Type': 'application/json' },
           body: JSON.stringify(payload),
         })
+        if (!addItemResp.ok) {
+          throw new Error('Failed to add routine item')
+        }
       } else {
-        await fetch(`/api/routine/${routineId}/item/${item.id}/edit`, {
+        const editItemResp = await fetch(`/api/routine/${routineId}/item/${item.id}/edit`, {
           method: 'PUT',
           headers: { 'Content-Type': 'application/json' },
           body: JSON.stringify(payload),
         })
+        if (!editItemResp.ok) {
+          throw new Error('Failed to edit routine item')
+        }
       }
     }