fix(studio): use singular agent_name/agent_version in experiments views

[marcusds]

Summary

Fixes the 3 TS2551 errors that have made the Studio typecheck check red on main:

• ExperimentGroupDataView/index.tsx:127,133 — agent_names / agent_versions not on ExperimentRow
• ExperimentDetailRoute/ExperimentDetailMetrics.tsx:31 — agent_names not on ExperimentResponse

Root cause: #294 (d5165414bd, "Roll up agent_names/agent_versions") left these views reading plural agent_names/agent_versions as arrays (.join(', ')), but the generated SDK type ExperimentResponse exposes singular agent_name: string / agent_version: string (one agent per experiment). The plural fields never existed in the TS SDK, so typecheck has been broken since that commit.

Changes

• ExperimentGroupDataView: agent_names/agent_versions columns → singular agent_name/agent_version accessors; headers "Agent Name"/"Agent Version".
• ExperimentDetailMetrics: agent_names?.join(', ') → agent_name; label "Agent Name".

Testing

• Full studio typecheck: 0 errors (was 3)
• eslint clean; no remaining agent_names/agent_versions references in studio; no specs cover these files

Resolves ASTD-244.

Summary by CodeRabbit

• Refactor
  • Simplified agent information display in experiment tables and detail views to show a single agent name and version instead of multiple joined values.
  • Updated metric labels to reflect the single-value format.
  • Added "-" placeholder for missing agent information.
  • Disabled sorting on agent information columns.

[coderabbitai]

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ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 313e80b and b349a13.

📒 Files selected for processing (2)

• web/packages/studio/src/components/dataViews/ExperimentGroupDataView/index.tsx
• web/packages/studio/src/routes/ExperimentDetailRoute/ExperimentDetailMetrics.tsx

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📝 Walkthrough

Walkthrough

Experiment UI displays agent information via single-value fields instead of comma-joined arrays. Table columns for agent_name and agent_version render individual values or - with sorting disabled. Detail metrics KVPair switches from "Agent Names" (joined) to "Agent Name" (single value).

Changes

Agent Field Display Updates

Layer / File(s)	Summary
Single-value agent field display in experiment views web/packages/studio/src/components/dataViews/ExperimentGroupDataView/index.tsx, web/packages/studio/src/routes/ExperimentDetailRoute/ExperimentDetailMetrics.tsx	Table columns and detail metrics render agent_name and agent_version as single values (or - when missing), with sorting disabled on the table columns.

Possibly related PRs

• NVIDIA-NeMo/nemo-platform#260: Updates to ExperimentDetailMetrics.tsx for new Experiment Detail page that directly overlaps with this PR's metrics display change.
• NVIDIA-NeMo/nemo-platform#229: Updates to ExperimentGroupDataView and agent column rendering align with this PR's switch from multi-value to single-value agent fields.

Suggested labels

fix

Suggested reviewers

• nakolean
• walston

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: switching from plural to singular agent field names in experiment views.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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• Commit unit tests in branch astd-244-fix-experiment-agent-name-singular/mschwab

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[github-actions]

Suite	Lines Covered	Line Rate	Branch Rate
Unit Tests	19033/25227	75.4%	61.3%
Integration Tests	11028/23999	46.0%	20.4%

[marcusds]

Closing: misdiagnosis on my part. web/packages/sdk/generated is git-ignored/generated; my local copy was stale (singular agent_name), so a local typecheck showed false errors. The real spec/SDK exposes plural agent_names/agent_versions (string[]), so #294 and main were always correct and green on CI. This PR's singular change is the actual regression. No fix needed.