scanRecoveryFile raised a plain AnalysisOutputError when a selected file
exceeded the remaining operation-wide input allowance, and
snapshotRecoveryInput folded that, read failures and UTF-8 decode
failures into one invalid_value request issue. A 64 MiB + 1 input was
therefore reported as a retryable invalid argument whose only record of
the 67108864-byte budget was message text that also called it an
invalid analysis output, and malformed UTF-8 received the same reason.
The scanner now marks its byte-bound refusals with the bound it
enforced. snapshotRecoveryInput, which owns the meaning of that bound
as the remaining total input allowance, reports it as a non-retryable
file-size AnalysisResourceConstraintError with maximum_input_bytes and
remaining_input_bytes, and decodes UTF-8 separately as an invalid_format
issue. Other scanner consumers still receive an AnalysisOutputError, and
the limit stays enforced.
Fixes#4629
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
