Goal

Implement a unified caching layer under pkg/cache that is:

• Simple to use
• Production-ready
• Configurable and extensible
• Integrated with observability tooling

Deliverables

• Core Cache Interface
• In-Memory Backend
• Redis Backend
• Observability Wrapper
  • Logging: Log each operation and failure with context.
  • Tracing: Wrap backend calls in OpenTelemetry spans.
  • Metrics: Emit Prometheus metrics for operations, latencies, and errors.
• Configuration Support
  Support runtime configuration and environment-based backend switching.