// ❌ Traditional scattered logging
logger.info("Request started");
logger.info(`User ${userId} found`);
logger.info("Fetching cart");
logger.debug(`Cart has ${items.length} items`);
logger.info("Processing payment");
logger.error(`Payment failed: ${error.message}`);

// ✅ Wide event - build throughout request, emit once
const event = {
  request_id: req.id,
  timestamp: Date.now(),
  service: "checkout",
  version: "2.3.1",

  user: { id: userId, tier: "premium", account_age_days: 847 },
  cart: { id: cartId, item_count: 3, total_cents: 15999 },
  payment: { method: "card", provider: "stripe", latency_ms: 234 },

  outcome: "failure",
  error: { type: "PaymentDeclined", code: "card_declined", retriable: true }
};

logger.info(event);