ai_gateway: retain full error response body across all error types#154
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The gateway error factory extracted only message/type/generationId from the error response and discarded the rest of the body -- including the provider routing/fallback details (which backends were tried and how each failed). Capture the full body on the base GatewayError and forward it through map_error into ProviderAPIError.body for every error type, not just GatewayResponseError.
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elprans
approved these changes
May 28, 2026
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The gateway error factory extracted only message/type/generationId from
the error response and discarded the rest of the body -- including the
provider routing/fallback details (which backends were tried and how
each failed). Capture the full body on the base GatewayError and forward
it through map_error into ProviderAPIError.body for every error type, not
just GatewayResponseError.