fix: OAuth connector callback redirect fix (backport of #2054)

[edwinjosechittilappilly]

Summary

Backports #2054 from release-saas-ga-0.6.2 to main.

Most of #2054's substance (the refreshAuth useCallback fix, CI workflow tweaks) was already merged to main independently via #2052. The only remaining diff after cherry-picking is a single explanatory comment in frontend/app/auth/callback/page.tsx that wasn't carried over.

Test plan

• CI passes

Summary by CodeRabbit

• Documentation
  • Added an inline clarification describing OAuth storage cleanup behavior.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 2bc700ae-0c0d-4171-8ed7-830a2ed89f49

📥 Commits

Reviewing files that changed from the base of the PR and between 7fb88fd and 52baf7b.

📒 Files selected for processing (1)

• frontend/app/auth/callback/page.tsx

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Walkthrough

Adds an inline comment above cleanupOAuthStorage() explaining that it removes OAuth-flow-related keys from localStorage. No functional logic changes.

Changes

OAuth cleanup documentation

Layer / File(s)	Summary
Document OAuth storage cleanup frontend/app/auth/callback/page.tsx	Adds a comment clarifying the purpose of cleanupOAuthStorage().

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• langflow-ai/openrag#2052: Both changes concern the cleanupOAuthStorage() helper in the OAuth callback page.

Suggested reviewers: mfortman11

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title matches the backported OAuth callback redirect fix and is specific enough to describe the PR's intent.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch backport/2054-oauth-callback-redirect

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