curl -X PATCH https://api.khaime.com/api/v1/partner/quote/101 \
  -H "X-API-Key: pk_sandbox_your_key" \
  -H "Content-Type: application/json" \
  -d '{
    "discount_amount": 50000,
    "discount_reason": "Special promotion - 20% off"
  }'

curl -X PATCH https://api.khaime.com/api/v1/partner/quote/101 \
  -H "X-API-Key: pk_sandbox_your_key" \
  -H "Content-Type: application/json" \
  -d '{
    "line_items": [
      { "product_id": 123, "product_title": "Widget Pro", "quantity": 100, "unit_price": 2300 }
    ],
    "payment_terms": "NET15",
    "valid_until": "2024-03-15T23:59:59Z"
  }'

{
  "status": "success",
  "message": "Quote updated successfully",
  "data": {
    "id": 101,
    "quote_number": "Q-2024-0001",
    "status": "draft",
    "discount_amount": 50000,
    "discount_reason": "Special promotion - 20% off",
    "total_amount": 465000,
    "updated_at": "2024-01-16T11:30:00Z"
  }
}