improvement(ui): reuse chips for panel selection actions

[BillLeoutsakosvl346]

Workflow tabs and terminal Input/Output selection now use the existing Chip active treatment. The local PanelTabButton wrapper and export are removed. Header menu/chat buttons use the shared 28px regular icon size.

Tab handlers, hydration guards, data attributes, visibility conditions and mounted panel content are unchanged. Intentional visual changes: tabs 28→30px and labels 12→14px, standard chip corners and selected fill, and header actions 30→28px.

Validation: workspace types, import checks, mandatory API validation, lint, full EMCN suite and 29consumer tests. Source-backed light/dark/selected/focus/enlarged-text fixture screenshots will be attached; live authenticated workflow behavior was not exercised in the browser.

External full audit: 739→721 findings; all 18 targeted overrides removed, no new findings. Diff checker clean against the actual base.

[vercel]

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs	Skipped		Sep 22, 2026 10:07pm UTC

[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge because the shared controls preserve the required interaction semantics and no stale references or concrete regressions remain.

Summary

This PR standardizes workflow-panel and terminal selection controls on the shared Chip component, removes the obsolete local tab-button wrapper, and adopts the shared 28px icon-action sizing for panel header controls.

• Preserves existing tab handlers, hydration guards, data attributes, visibility conditions, and mounted panel content.
• Uses Chip active for Chat, Toolbar, Editor, Output, and Input selection.
• Removes the unused PanelTabButton implementation and export.
• No actionable correctness, accessibility, security, or repository-rule regression was identified.

_{Reviews (1) · Last reviewed commit: "improvement(ui): reuse chips for panel s..."}

[cubic-dev-ai]

No issues found across 4 files

Confidence score: 5/5

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

_{Re-trigger cubic}

[BillLeoutsakosvl346]

Before → after at 85c350c. Existing Chips replace the local tab wrapper and terminal selection styles. Source-backed fixtures with local state; live authenticated workflow behavior was not exercised.

Intentional differences: tabs 28→30px, labels 12→14px, shared selected fill/corners; header icon actions 30→28px. Click/keyboard selection was exercised. Product hydration guards, data attributes and mounted content are unchanged.

Light — before left / after right:

Dark — before left / after right:

Controls — 2× enlarged crop: