{
  "error": {
    "message": "Unauthorized",
    "code": "UNAUTHORIZED"
  }
}

{
  "error": {
    "message": "Access denied",
    "code": "FORBIDDEN"
  }
}

{
  "error": {
    "message": "Analysis not found",
    "code": "NOT_FOUND"
  }
}

{
  "error": {
    "message": "Invalid input",
    "code": "BAD_REQUEST",
    "issues": [{
      "path": ["salespersonId"],
      "message": "Required"
    }]
  }
}

{
  "error": {
    "message": "Rate limit exceeded",
    "code": "TOO_MANY_REQUESTS"
  }
}

async function fetchWithRetry(url, options, maxRetries = 3) {
  for (let i = 0; i < maxRetries; i++) {
    try {
      const res = await fetch(url, options);
      
      if (res.ok) return res;
      
      if (res.status === 429) {
        const delay = Math.pow(2, i) * 1000;
        await new Promise(r => setTimeout(r, delay));
        continue;
      }
      
      throw new Error(`HTTP ${res.status}`);
    } catch (error) {
      if (i === maxRetries - 1) throw error;
    }
  }
}