feat: debounce highlighted attribute validation query

[karl-power]

Follow up to #1576 after feedback from @MikeShi42.

With these changes, validation queries run either when the "Validate expression" button is clicked, or 1 second after the input value was changed for either the expression or the alias.

Untitled.mov

[changeset-bot]

🦋 Changeset detected

Latest commit: 1d24bb2

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@hyperdx/app	Patch
@hyperdx/api	Patch

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Project	Deployment	Review	Updated (UTC)
hyperdx-v2-oss-app	Ready	Preview, Comment	Jan 22, 2026 2:17pm

[claude]

PR Review

✅ No critical issues found.

The implementation correctly debounces the validation query with a 1-second delay and uses useDidUpdate to skip validation on mount. The logic for showing validation results is properly controlled via shouldShowResult to prevent stale results from appearing.

Minor observations (non-blocking):

• The debounced validation pattern is clean and follows Mantine hooks best practices
• Query caching is properly configured via TanStack Query (enabled flag controls execution)
• The shouldShowResult check ensures validation feedback matches current input state

[github-actions]

E2E Test Results

✅ All tests passed • 59 passed • 4 skipped • 771s

Status	Count
✅ Passed	59
❌ Failed	0
⚠️ Flaky	2
⏭️ Skipped	4

Tests ran across 4 shards in parallel.

View full report →

[fleon]

LGTM. Though my preference is to have a shorter debounce interval, say 400-500ms, its not a strong preference.

[pulpdrew]

LGTM, nice improvement!