fix: merge main, address code review feedback for security fix PR #816

- Merge origin/main into branch (resolve conflict in integrations_dashboard.html)
- Add defensive JSON parsing with try/except for integration.config
- Wrap tester() call in try/except to prevent 500 errors from bad config
- Add i18n key integrations.connection_test_failed_fallback in en.json
- Reference i18n key in template JS fallback message
- Update SECURITY_AUDIT.md: add fix date (2026-03-23), update doc date
- Remove accidental revert.sh file
- Fix missing MagicMock/patch imports in test file
- Add tests for invalid JSON config and tester exception error paths

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
Agent-Logs-Url: https://github.com/christianlouis/DocuElevate/sessions/daebb70e-059a-4601-8864-88eef49f99cf

app/utils/settings_sync.py

@@ -71,6 +71,16 @@ def notify_settings_updated() -> None:
     except Exception as exc:
         logger.warning(f"Could not reload in-process settings: {exc}")
 
+    # Re-register OAuth / social-login providers so that any provider whose
+    # credentials were just saved (or updated) in the database is active
+    # immediately on the login page — no restart required.
+    try:
+        from app.auth import refresh_social_providers
+
+        refresh_social_providers()
+    except Exception as exc:
+        logger.warning(f"Could not refresh social login providers after settings update: {exc}")
+
     # Re-check OCR language availability in the background whenever settings
     # are updated.  This ensures that if a user changes tesseract_language or
     # easyocr_languages via the UI, the new language data is downloaded without