Get Interview Follow-ups

curl https://api.promptster.ai/v1/sessions/sess_abc123/interview-followups \
  -H "Authorization: Bearer psk_live_abc123def456"

{
  "kind": "interview_followups_v1",
  "derivationV": 1,
  "interviewFollowups": {
    "followups": [
      {
        "question": "You chose useReducer over useState for the form state. Walk me through how you'd handle async validation in that reducer.",
        "context": "Candidate switched from useState to useReducer at the 25-minute mark after encountering a stale closure bug.",
        "focus_area": "architecture",
        "difficulty": "medium"
      },
      {
        "question": "Your test suite covers the happy path well. How would you approach testing the error boundary you added?",
        "context": "Candidate added an error boundary component but did not write tests for it.",
        "focus_area": "testing",
        "difficulty": "hard"
      }
    ]
  },
  "createdAt": "2026-04-07T10:35:00.000Z"
}