fetchWithRetry now clamps maxRetries>=0, baseDelayMs>=100,
backoffFactor>=1 to prevent infinite loops or zero-delay hammering.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Wire fetchWithRetry into login page config fetch (was dead code)
- Remove duplicate ERROR_CODE_MESSAGES, use parseAuthError from auth-errors.ts
- Fix OAuth sign-in fire-and-forget: add .catch() with PDA error + loading reset
- Fix credential login catch: use parseAuthError for better error messages
- Add user feedback when auth config fetch fails (was silent degradation)
- Fix sign-out failure: use logAuthError and set authError state
- Enable fetchWithRetry production logging for retry visibility
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
