fix(web): round the PR checks hover corners

[kcybe]

Status

Superseded by upstream PR #16746. It replaced the PR checks row, removed the chevron, and uses a rounded metadata control. The original square-corner hover no longer exists in the current implementation.

Merged the latest main into this branch and resolved the conflict by keeping the replacement implementation and removing the obsolete split-checks style. The branch now has no remaining code diff against the main commit it incorporates (cd41c4ada0).

Verification after conflict resolution

• Web package typecheck passed: vp run --filter @t3tools/web typecheck.
• Focused lint passed for threadDetailsPanelStyles.ts, ThreadDetailsControl.tsx, and ThreadDetailsPrRow.tsx.
• Existing ThreadDetailsPrRows.test.tsx and ThreadDetailsPanel.test.tsx: 2 files, 4 tests passed.
• Formatting check passed for the resolved styles file. No unmerged entries remain, and the resolved tree matches upstream main.

Original visual evidence

These fresh local screenshots demonstrate the original bug and the original one-line fix, before the upstream redesign. They are retained as historical evidence, not screenshots of the current layout. None is reused from the user's report or committed to the repository.

Theme	Before	After
Dark
Light

Agent: GPT-6.1-Sol, Codex harness in T3 Code.

[macroscopeapp]

Approvability

Verdict: Approved at c375979

Macroscope's review found this PR approvable — This is a focused one-line CSS correction that rounds only the outer edge of the existing PR checks control when it ends the row, without changing behavior, data flow, or integrations. The affected runtime surface is limited to the web UI's visual styling.

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[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

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📥 Commits

Reviewing files that changed from the base of the PR and between 7812230 and c375979.

📒 Files selected for processing (1)

• apps/web/src/components/chat/threadDetailsPanelStyles.ts

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📝 Walkthrough

Walkthrough

The split-check class string now adds trailing-end rounding to the last check button.

Changes

Split-check styling

Layer / File(s)	Summary
Last control corner rounding apps/web/src/components/chat/threadDetailsPanelStyles.ts	THREAD_DETAILS_PANEL_SPLIT_CHECKS_CLASS adds last:rounded-e-lg to round the trailing end of the last check button.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~5 minutes

Change: Bug fix

Suggested reviewers: rakshithbhat03

Merge Risk: ⚪ Minimal · up to c3759

This change only rounds the trailing end of the last checks control. No actionable merge-blocking risk is indicated by the supplied context.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description explains that the original change was superseded and gives detailed verification results. However, it does not provide the template’s Problem, Change, or Scope and approval sections, o…	Add the Problem, Change, and Scope and approval sections. Explain the original bug and fix, provide the issue or maintainer approval, or explain why this small fix qualifies for an exemption. Clarify the PR’s purpose now that it has no code…

✅ Passed checks (4 passed)

Check name	Status	Explanation
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.
Title check	✅ Passed	The title clearly describes the original change: rounding the PR checks hover corners.

Full details: Description check

Explanation

The description explains that the original change was superseded and gives detailed verification results. However, it does not provide the template’s Problem, Change, or Scope and approval sections, or explain why the original fix qualifies for an exemption.

Resolution

Add the Problem, Change, and Scope and approval sections. Explain the original bug and fix, provide the issue or maintainer approval, or explain why this small fix qualifies for an exemption. Clarify the PR’s purpose now that it has no code diff against main.

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