* test: add logging e2e coverage (s3_v2, gcs_bucket, team langfuse callback, datadog failure)
Five new live e2e scenarios raising Logging & Guardrails registry coverage:
s3_v2 success and failure objects read back from the real S3 bucket,
gcs_bucket success record read back through the GCS JSON API (with
nextPageToken pagination and per-request bearer minting), team-scoped
Langfuse callback delivery with non-team isolation, and DataDog failure
event delivery queried by indexed model_group. datadog_reader gains
query-based variants of the marker search; the langfuse cell is a new
registry row. Bucket readers settle past a full flush interval so a
late duplicate cannot hide from the exactly-one assertions
* test: cover clock-skew day prefix in gcs read-back and retry team callback propagation
* test: key the s3 failure read-back on the provider error, not payload absence
* chore: rerun ci
* chore: rerun ci after config sync
* chore: rerun ci with pr lane env
* chore: rerun ci
* chore: rerun ci
* chore: rerun ci
* chore: rerun ci
* chore: rerun ci
* test: add guardrail e2e coverage (presidio masking, bedrock post and during call, moderation on messages) (#38553)
* test: add guardrail e2e coverage (presidio masking, bedrock post/during, moderation on messages)
* test: require the phone placeholder positively in the presidio masking predicate
* test: count only the 400 verdict body as a bedrock post_call block
* test(e2e): exempt the guardrail config echo from the post_call leak assertion
* test(e2e): pin the fail-closed contract for an unknown guardrail name (skipped, product gap)
* test(e2e): tolerate the readiness 503 from a transient db blip in the callback-config probes
