assets_upload refused invalid/empty uploads with messages.error +
HTTP 200, which the HTMX/XHR path drops silently (the partial carries
no toast header) — so the operator saw nothing and the batch uploader
counted the rejection as a success. Pass the rejection through
_asset_table_response(toast=('error', …)) so it rides the HX-Trigger
header on every transport.
Client side, uploadOne() now distinguishes 'ok' / 'rejected' (2xx +
error toast) / 'error' (transport): a rejected file surfaces its
server toast and the batch skips it and keeps going, while a true
transport failure aborts. Addresses Copilot review feedback.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
3c46fc6d81