fix(web): pull request surface offers the checkout's PR

[StiensWout]

Problem

On a thread whose checkout has an open pull request, the git menu shows View PR and opens that PR in the right panel, yet the right panel's own Pull request card is disabled with "No pull request on this branch yet." Two entry points to the same panel disagree about whether a PR exists.

The card only offered the thread's own PR, which requires the recorded thread branch to match the checkout. On a shared (non-worktree) checkout that recorded branch deliberately stays strict (#4460), so the common flow of an agent running git checkout -b and gh pr create mid-thread leaves the thread without an attributed PR while the checkout clearly has one.

Closes #8265

Solution

The card now falls back to the checkout's PR, opened against the project repository with the same gate View PR already uses. The thread's own PR still wins when it has one, and thread attribution (sidebar badge, composer footer, auto-settle) is unchanged. The menu's disabled reason now reads "This branch has no pull request yet." to match.

Before

Reporter's screenshot: View PR enabled, Pull request card disabled.

After

The card is enabled whenever View PR would open a PR in the panel, and opens the same one.

Verification

• vp run typecheck for apps/web
• vp lint and vp fmt --check on the two changed files
• vp test run apps/web/src/components/RightPanelTabs.test.tsx

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Made with Claude Fable 5 in T3 Code.

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Note

Low Risk
UI-only fallback for opening an existing checkout PR in the right panel; thread PR resolution and attribution logic are unchanged.

Overview
Aligns the right panel Pull request card with the git menu View PR when a thread has no attributed PR but the checkout has an open one.

ChatView now derives checkoutPr from git status (open PR only, and only when there is no linked thread PR) and enables the surface when either the thread PR or that checkout PR exists. Opening the surface prefers the thread PR via openThreadPullRequest; otherwise it opens the checkout PR with openProjectPullRequest, matching View PR.

RightPanelTabs updates the disabled copy to "This branch has no pull request yet." so it is not thread-specific when the fallback applies. Thread attribution elsewhere is unchanged.

^{Reviewed by Cursor Bugbot for commit 21d2dc7. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Offer checkout PR on Pull Request surface when thread has no PR

• Derives checkoutPr from gitStatusQuery in ChatViewContent so the PR surface shows an open checkout PR even when the thread has no linked PR
• Opens the thread PR when one exists; otherwise opens the project's checkout PR via openProjectPullRequest
• pullRequestSurfaceAvailable is now true when either the thread has a PR and threadRepository is present, or the checkout has an open PR and activeProjectRepository is present
• Updates the disabled-reason text in RightPanelTabs.tsx from "This thread's branch has no pull request yet." to "This branch has no pull request yet."
• Behavioral Change: the PR surface now activates for branches with an open checkout PR regardless of thread PR state, which may surface PRs that were previously hidden

^{Macroscope summarized 21d2dc7.}

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[cursor]

Cursor Bugbot has reviewed your changes using high effort and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 856c3cd. Configure here.}

[macroscopeapp]

One finding on the new checkout-PR fallback for the pull-request surface. Details inline.

^{Posted via Macroscope — UI Consistency}

[macroscopeapp]

Approvability

Verdict: Approved at 21d2dc7

Macroscope's review found this PR approvable — This is a narrowly scoped web bug fix that makes the Pull request surface match the existing git-menu behavior for open checkout PRs. Existing thread PR handling remains prioritized, while the second file only updates explanatory copy.

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