auth: review follow-ups (provider routing, URL normalization, expiry preflight, HTTP timeouts) #1156

Bugbot Review

Bugbot Analysis Progress (4m 52s elapsed)

✅ Gathered PR context (3s)
✅ Completed bug detection (4m 49s)
✅ Posted analysis results (1s)

Final Result: Bugbot completed review - no issues found! ✅

Request ID: serverGenReqId_f28e4229-e3ff-48a8-ab14-ce35c3d9a0dd

✅ Bugbot reviewed your changes and found no new issues!

Comment @cursor review or bugbot run to trigger another review on this PR

^{Reviewed by Cursor Bugbot for commit 6a9e601. Configure here.}