# OPS04-BP02: Implement application telemetry

## Description

Thu thập telemetry từ applications (metrics, logs, traces).

## Implementation Guidance

- Use OpenTelemetry for standardized instrumentation
- Implement structured logging (JSON format)
- Collect custom application metrics
- Auto-instrumentation where possible
- Correlation IDs for request tracking

## Risk Level

High - Without telemetry, debugging is guesswork.
