feat(uat): enroll azure-h100 in the nightly batch with [training]

[mchmarny]

Summary

Enrolls azure-h100 in the nightly UAT batch with nightly-intents: [training], ending its bring-up manual-dispatch-only phase. Updates the uat.md enrollment table/prose and the committed-registry lock-in test.

Motivation / Context

The stated gate for flipping azure-h100 off nightly-intents: [] was a green manual run. The acceptance run (29125390442) completed green end-to-end: provision → prep → install → validate (all phases) → TrainJob → verify → signed-evidence ingest to the corroboration bucket (now rendered on validation.aicr.run) → clean teardown.

Training-only for now: inference joins after a green manual intent=inference dispatch, matching how the intent set is data-driven per reservation. (The serve CUJ step remains disabled on all clouds pending #1644, so an Azure inference cell would provision + validate the inference stack, same as AWS/GCP.)

Fixes: N/A
Related: #1709, #1722, #1275, #1276

Type of Change

• Build/CI/tooling

Component(s) Affected

• Docs/examples (docs/)
• Other: UAT reservation registry (infra/uat/reservations.yaml), pkg/uatbroker lock-in test

Implementation Notes

• The registry comment keeps the authoring caveat visible: add inference to the list rather than removing the key (a bare nightly-intents: decodes as absent and defaults to [training]).
• TestCommittedRegistryValid updated — it deliberately pins the committed intent set, so this data change fails the test without the matching expectation change.

Testing

GOFLAGS=-mod=vendor go test -race ./pkg/uatbroker/... ./tools/uat-broker/...  # ok
golangci-lint run -c .golangci.yaml ./pkg/uatbroker/...                       # 0 issues
yamllint -c .yamllint.yaml infra/uat/reservations.yaml                        # clean

• Coverage gate: test-only Go change (expectation update); no new exported surface.
• Behavior exercised by tonight's uat-nightly-batch.yaml cron (0 4 UTC) — the azure-h100 training cell dispatches through the same uat-run path the acceptance run used.

Risk Assessment

• Low — Data + docs + test expectation. Revert restores the opt-out. Worst case is a red nightly cell on a lane that just passed its acceptance run.

Checklist

• Tests pass locally (make test with -race)
• Linter passes (make lint)
• I did not skip/disable tests to make CI green
• I added/updated tests for new functionality (lock-in test expectation)
• I updated docs if user-facing behavior changed (docs/contributor/uat.md)
• Changes follow existing patterns in the codebase
• Commits are cryptographically signed (git commit -S)

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

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Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Enterprise

Run ID: b37ea639-b8cc-4781-9e03-b235144de7b5

📥 Commits

Reviewing files that changed from the base of the PR and between b39d4a0 and 695425a.

📒 Files selected for processing (3)

• docs/contributor/uat.md
• infra/uat/reservations.yaml
• pkg/uatbroker/registry_test.go

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📝 Walkthrough

Walkthrough

Azure H100 is enrolled in nightly training through the reservation configuration, with registry validation updated to expect IntentTraining. UAT documentation now describes inference enrollment after a successful manual run, notes that the serving CUJ remains disabled pending issue 1644, and generalizes the queued-reservation example to cover nightly and ad-hoc dispatches.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• NVIDIA/aicr#1709: Directly relates to the azure-h100 nightly-intents configuration and registry behavior.

Suggested labels: area/tests

Suggested reviewers: njhensley

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/azure-nightly-enrollment

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[github-actions]

🌿 Preview your docs: https://nvidia-preview-feat-azure-nightly-enrollment.docs.buildwithfern.com/aicr

[github-actions]

Coverage Report ✅

Metric	Value
Coverage	78.7%
Threshold	75%
Status	Pass

Coverage Badge

![Coverage](https://img.shields.io/badge/coverage-78.7%25-green)

No Go source files changed in this PR.