Fix task runner tools not appearing in Tools toggle menu

[vltbaudbot]

Problem

On the benchmarks page at benchmarks.vlt.sh/#/task-runners/average, the Tools filter menu only shows package manager tools — it doesn't include the 3 task-runner-specific tools (nx, turbo, vp). These tools appear in the charts but users cannot toggle them on/off via the Tools dropdown.

Root Cause

In app/src/components/header.tsx, the HeaderNavigation component computes variationData using chartData.chartData.data[currentVariation] unconditionally. However, when on the task-runners route with the "average" variation, the actual data comes from chartData.taskRunnerAverageData (not chartData.chartData.data["average"]). Similarly for registries, the data comes from chartData.registryAverageData.

The VariationPage component already handles this correctly with route-aware conditionals, but the header was missing this logic.

Fix

Made the variationData computation in HeaderNavigation route-aware:

• When baseRoute === "task-runners" and variation is "average", use chartData.taskRunnerAverageData
• When baseRoute === "registries" and variation is "average", use chartData.registryAverageData
• Otherwise, use chartData.chartData.data[currentVariation] (existing behavior)

This matches the logic already used in VariationPage (app/src/components/variation/index.tsx).

Fixes vltpkg/vlt.io#1942

Summary by CodeRabbit

• Bug Fixes
  • Header navigation now displays task runner and registry data correctly for average variations.
  • Other variations continue to use their standard data.

[coderabbitai]

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ℹ️ Recent review info

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Run ID: 67a632b0-060c-4edf-8676-18d2464438c1

📥 Commits

Reviewing files that changed from the base of the PR and between e2e5ecb and 63701fc.

📒 Files selected for processing (1)

• app/src/components/header.tsx

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📝 Walkthrough

Walkthrough

Header navigation now detects average variations and selects route-specific aggregate data for task runner and registry routes.

Changes

Average variation routing

Layer / File(s)	Summary
Header navigation data selection app/src/components/header.tsx	The header imports isAverageVariation. Average variations use taskRunnerAverageData or registryAverageData by route. Other variations use the standard variation data.

Estimated code review effort: 1 (Trivial) | ~3 minutes

Merge Risk: ⚪ Minimal · up to 63701

The header now selects the appropriate aggregate data for average task-runner and registry views, restoring the expected Tools filter options. No current merge-blocking risk remains.

🚥 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 clearly identifies the primary change: fixing missing task runner tools in the Tools toggle menu. It is concise and directly matches the pull request objectives.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1…
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.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1 files.

✨ 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 jules/fix-task-runner-tools-toggle

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