fix(image): cancel stale H.264 seek repairs

[joaner]

Description

Cancel obsolete H.264 seek-repair range queries before they can reset the worker or enqueue frames for an older seek target.

Motivation / related issue

Rapid consecutive rewinds can resolve out of order. An older range query could previously overwrite the decoder state established for the latest seek.

Type of change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing behavior to change)
• Documentation update
• Refactor / internal cleanup (no behavior change)

Checklist

• npm run lint passes with no errors
• npm test passes (648 tests)
• npm run build and npm run build:lib succeed
• New behavior is covered by tests
• Documentation updated (README, API.md, EMBEDDING.md) if the public API changed — N/A, no public API change
• Breaking change: all affected call sites updated and migration path described in PR description — N/A

Additional verification: npm run typecheck and npx playwright test tests/image-h264.spec.ts.

API compatibility

N/A

Screenshots / recordings

N/A — no visual UI change.

  

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	rosview	b986bb7	Commit Preview URL Branch Preview URL	Jul 26 2026, 02:30 PM