fix(auth): surface underlying provider errors for JWT and TwoStep auth failures

[hassan254-prog]

Describe the problem and your solution

• surface underlying provider errors for JWT and TwoStep auth failures

[superagent-security]

Superagent found 3 security concern(s).

[cubic-dev-ai]

No issues found across 4 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}