Create a database record

Owner only. Requires the app activation gate and a full API token or an OAuth grant with live per-app data access. Uses the chosen per-app identity and its PocketBase rules. Only explicit full access bypasses them. Unset reads as a visitor and refuses writes. Responses exclude hidden fields. Maximum body 262144 bytes; response 1048576 bytes. Readwrite access required. A client id makes duplicate creates detectable. A 502 DATA_WRITE_OUTCOME_UNKNOWN (lost, 5xx, unreadable, oversized or timed-out reply) may have completed; check before retrying.