Inspect a kept file again with the current engine

Runs the file this account kept for that inspection through the current engine and returns a new report, exactly as POST /api/v1/inspect would for the same bytes (?redact=payload and ?changes=values work the same). Counts one document against the monthly quota, and a spent month is 429 quota_exceeded. Nothing new is kept: the response is the only copy of the new report. It carries reinspection: {of, storedEngineVersion} beside the report.

404 inspection_not_found, 404 file_not_retained, 410 file_expired, 503 retention_bytes_unavailable, 503 busy (too many kept files in flight, or the pool is full), 409 no_live_key (a dashboard session whose account has no live key to count the document against), 413 file_too_large (the file exceeds today's upload limit), and the timeout answer of /inspect.