When a combo is duplicated or imported, its inner data JSON blob may
retain a stale id from the template. withRowId previously kept the inner
string id instead of prioritizing the database primary key (row.id),
causing GET /api/combos to return mismatched ids and breaking subsequent
DELETE / PUT operations with 404.
Also add an error notification branch to handleDelete in the combos page
so failed delete requests surface actionable feedback instead of failing
silently.
Signed-off-by: Minxi Hou <houminxi@gmail.com>
2bd3023e09