feat(web): show the repository on Linked PRs rows in multi-repo threads

[id0Sch]

What Changed

Linked PRs rows now show owner/repo after the author when a thread links pull requests from more than one repository. Single-repo threads are unchanged. This matches the global Pull Requests page, which already puts the repository after the author.

The check runs once per panel over the visible links (host/repository, case-insensitive) and is passed to each row. Rows still waiting for host state already show host/repository in place of the branches, so they are left alone.

Mobile already shows the repository in each linked PR subtitle, so no change is needed there.

Why

In a thread whose pull requests span several repositories, every row looks alike. PR numbers can collide across repositories, and nothing says which repository a row belongs to. Proposed in Ideas #13050.

UI Changes

A thread linking pull requests from pingdotgg/t3code and Effect-TS/effect-smol:

Before	After

Validation

• Web typecheck passes. Formatting was checked with oxfmt.
• Verified in the running web client, seeded with a copy of real data and real public pull requests linked to one thread.

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes
• I included a video for animation/interaction changes (not applicable)

Model: Claude Opus 5.5. Harness: Claude Code.

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Summary by CodeRabbit

• Improvements
  • Pull request link rows now show repository names when links span multiple repositories, and include host names when those repositories are on different hosts. Repository details are omitted when all links point to the same repository.

[macroscopeapp]

Approvability

Verdict: Would Approve

Macroscope's review found this PR approvable — This is a small, isolated web UI change that conditionally adds repository text to linked pull-request rows without changing data, APIs, or existing single-repository behavior. A Medium-severity finding notes that same-named repositories on different hosts may still be ambiguous.

Not approved because:

• 1 blocking correctness issue found at or above your repo's Minimum Blocking Severity

^{Adjust the Minimum Blocking Severity for this repo — including turning it Off — in Settings. You can add or adjust custom eligibility rules. Learn more.}

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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 3fd96f3 and 2012afa.

📒 Files selected for processing (1)

• apps/web/src/components/pullRequest/ThreadPullRequestsPanel.tsx

🚧 Files skipped from review as they are similar to previous changes (1)

• apps/web/src/components/pullRequest/ThreadPullRequestsPanel.tsx

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📝 Walkthrough

Walkthrough

The panel computes repository labels from normalized linked pull request keys. Rows with non-null snapshots display the selected repository label.

Changes

Repository Labels

Layer / File(s)	Summary
Compute and display repository labels apps/web/src/components/pullRequest/ThreadPullRequestsPanel.tsx	The panel selects no label when fewer than two distinct normalized repository keys exist. It selects the host and repository when the keys span multiple hosts, or the repository name otherwise. Rows display the selected label for non-null snapshots. The label is not truncated.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to 2012a

The linked-PR rows appear to preserve the intended single-repository and waiting-state behavior. No merge-blocking issue was identified.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 1 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the primary change: showing repository information on Linked PR rows for multi-repository threads.
Description check	✅ Passed	The description includes What Changed, Why, UI Changes with before/after screenshots, validation details, and a completed checklist. It clearly explains the behavior and scope of the change.
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.

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Actionable comments posted: 2

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🤖 Prompt to fix review comments

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Inline comments:
In `@apps/web/src/components/pullRequest/ThreadPullRequestsPanel.tsx`:
- Around line 170-172: Update the repository label rendering in the
ThreadPullRequestsPanel row so truncation cannot hide the part that
distinguishes repositories; alternatively, make the full repository identity
available on both hover and keyboard focus. Preserve the existing
host-versus-repository label behavior.
- Around line 253-260: Update the repositoryLabel memo to derive repository and
host sets from the rendered lines produced by pullRequestListLines, rather than
raw links, and depend on lines so canonicalized duplicate links do not trigger
an unnecessary label.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository: pingdotgg/t3code/.coderabbit.yaml

Review profile: CHILL

Plan: Advanced

Run ID: 6944ca8c-16cc-4847-9bb7-a63723341514

📥 Commits

Reviewing files that changed from the base of the PR and between b21c545 and 3fd96f3.

📒 Files selected for processing (1)

• apps/web/src/components/pullRequest/ThreadPullRequestsPanel.tsx

Included review availability: Your plan provides up to 10 included reviews per hour; 9 remain after this review.

[juliusmarminge]

Closing as superseded by #13061, which already landed the Linked PRs repository label and resolved discussion #13050.

Thanks for the PR — the overlapping change is already on main.