Add Validation failure information to Validation Outcome

[AlejandroEsquivel]

Added:

• Validation Summaries to Validation Outcome which contains information relating to validator failures, successful validations are omitted due to the fact they don't contain information we are interested in, and in the case of streaming will bloat the validation outcomes in each chunk

Example:

ValidationOutcome(
    call_id='5221586160',
    raw_llm_output='OpenAI is great',
    validation_summaries=[
        ValidationSummary(
            validator_name='RegexMatch',
            validator_status='fail',
            property_path='$',
            failure_reason='Result must match \\(?\\d{3}\\)?-? *\\d{3}-? *-?\\d{4}',
            error_spans=None
        )
    ],
    validated_output='OpenAI is great',
    reask=None,
    validation_passed=False,
    error=None
)

Associated PRs:

• Adding validation summary schema interfaces#11
• Correct URL in validation-summary schema interfaces#12
• feat: Add ValidationSummary model and update ValidationOutcome guardrails-api-client#25

Needs to get merged after this is merged:

• serializing validation summaries in openai compatible endpoint guardrails-api#77

[dtam]

does async_guard or the other places we yield a ValidationOutcome like in async_stream_runner or stream_runner need updates?

[AlejandroEsquivel]

does async_guard or the other places we yield a ValidationOutcome like in async_stream_runner or stream_runner need updates?

so Async Guard should, but ValidationOutcome not yielded yet on streaming (sync/async) that's going to come after (but soon). needs a bit more care to avoid introducing performance issues due to the need to iterate through validation logs in each chunk