Log a terminal CSV import summary
Records bounded browser-observed counts and timing; it does not persist import lifecycle state.
Authentication: Bearer token required.
Authentication
Bearer authentication of the form Bearer <token>, where token is your auth token.
Headers
A unique key (up to 255 printable ASCII characters, e.g. a UUID) that makes a retry of this request safe. Envoy stores the response for 24 hours; a retry with the same key and the same request returns it again with Idempotent-Replayed: true instead of running twice. The same key with a different request returns 422 idempotency_key_reused; while the first request is still running, 409 idempotency_key_in_progress. 5xx and 429 responses are not stored.
Request
Which entity a CSV upload is for — echoed in the response and the correlated logs.
Rows accepted but deliberately not written (e.g. TMS-protection skips)

