fix(github-picker): show reconnect action on GitHub accounts error

[guitavano]

Summary

• When the GitHub import modal fails to load accounts (e.g. expired OAuth token), it now shows a proper error state with a "Reconnect GitHub" button that triggers re-authentication, instead of just a plain red error message
• Adds a "Retry" fallback for transient errors that don't require re-auth
• Matches the existing AutoInstallGitHubUI error design for visual consistency

Test plan

• Open the GitHub import modal with an expired/invalid GitHub OAuth token
• Verify the error state shows the GitHub icon, helpful message, and reconnect button
• Click "Reconnect GitHub" and verify the OAuth flow opens
• After successful re-auth, verify the installations list loads
• Click "Retry" and verify it refetches without triggering OAuth

🤖 Generated with Claude Code

---

Summary by cubic

Shows an actionable error state in the GitHub import modal when accounts fail to load, with a “Reconnect GitHub” flow and a “Retry” option to recover without manual steps. Improves UX for expired/invalid OAuth tokens and matches the existing error design.

• Bug Fixes
  • Added reconnect flow using authenticateMcp, persists tokens via the connection OAuth endpoint, then refetches installations.
  • Added “Retry” to refetch without re-auth.
  • Updated error UI with GitHub icon and reconnect progress state.

^{Written for commit 7b52b87. Summary will update on new commits. Review in cubic}

[github-actions]

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[github-actions]

Release Options

Suggested: Patch (2.334.1) — based on fix: prefix

React with an emoji to override the release type:

Reaction	Type	Next Version
👍	Prerelease	2.334.1-alpha.1
🎉	Patch	2.334.1
❤️	Minor	2.335.0
🚀	Major	3.0.0

Current version: 2.334.0

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[cubic-dev-ai]

1 issue found across 1 file

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="apps/mesh/src/web/components/github-repo-picker.tsx">

<violation number="1" location="apps/mesh/src/web/components/github-repo-picker.tsx:598">
P2: Reconnect swallows token-save failures, which can leave the connection unauthenticated without clear user feedback.</violation>
</file>

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

Re-trigger cubic</sub>

[cubic-dev-ai]

P2: Reconnect swallows token-save failures, which can leave the connection unauthenticated without clear user feedback.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. At apps/mesh/src/web/components/github-repo-picker.tsx, line 598:

<comment>Reconnect swallows token-save failures, which can leave the connection unauthenticated without clear user feedback.</comment>

<file context>
@@ -562,6 +564,55 @@ function InstallationPicker({
+              }),
+            },
+          );
+          if (!response.ok) {
+            console.error("Failed to save OAuth token:", await response.text());
+          }
</file context>