fix(tabs): preserve readable labels in crowded tab strips

[waleedlatif1]

Summary

• Keep floating tab titles readable when selecting, hovering, or focusing crowded tabs. Use a stable 112px minimum, with room for both attention and close controls on touch devices; overflow scrolls instead of collapsing labels.
• Reuse EMCN's spacing scale, shared scroll fade, and matching active-tab scroll margin.
• Extend the real Electron regression test to measure usable title space and verify stable hover geometry, keyboard reveal, touch controls, and light/dark screenshots.

Type of Change

• Bug fix

Testing

• Real Electron browser-chrome.spec.ts passes, including existing native-browser overlay coverage. The selected-title regression fails on the previous implementation (2px of title space), and removing the touch minimum independently reproduces its failure (20px).
• Reviewed crowded-tab screenshots in both themes and touch mode; artifacts are produced through Playwright's configurable output directory.
• Tab-strip unit test; app, desktop, and EMCN type checks; cleanup review; repository lint; block-registry audit; all 51 check:audits checks; docs-manifest check; git diff --check pass.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing (new tests pass the test-audit authoring gate)
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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Project	Deployment	Actions	Updated
docs	Ready	Preview	Sep 26, 2026 5:53am UTC

[cubic-dev-ai]

All reported issues were addressed across 3 files

<sub>Reply with feedback, questions, or to request a fix.

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[waleedlatif1]

@greptile

[greptile-apps]

Confidence Score: 5/5

[Medium risk] Updates tab strip rendering and test fixtures for label visibility.

The PR appears safe to merge; no outstanding finding or new actionable issue was established.

Summary

The PR gives crowded floating tabs a stable readable width, reserves space for touch controls, reuses the shared scroll fade, and extends the Electron regression test. The previous findings are resolved or addressed by the current code.

_{Reviews (3) · Last reviewed commit: "fix(tabs): keep touch sizing stable acro..."}

[waleedlatif1]

@cubic-dev-ai review this PR

[cubic-dev-ai]

@cubic-dev-ai review this PR

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[cubic-dev-ai]

No issues found across 3 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}

[waleedlatif1]

@greptile

[waleedlatif1]

@cubic-dev-ai review this PR

[cubic-dev-ai]

@cubic-dev-ai review this PR

@waleedlatif1 I have started the AI code review. It will take a few minutes to complete.

[waleedlatif1]

@cubic-dev-ai review this PR

[cubic-dev-ai]

@cubic-dev-ai review this PR

@waleedlatif1 I have started the AI code review. It will take a few minutes to complete.

[waleedlatif1]

@cubic-dev-ai review this PR

[cubic-dev-ai]

@cubic-dev-ai review this PR

@waleedlatif1 I have started the AI code review. It will take a few minutes to complete.

[cubic-dev-ai]

No issues found across 3 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}

[cubic-dev-ai]

No issues found across 3 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}

[cubic-dev-ai]

No issues found across 3 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}