[Feat/Chaos]: Build an Embedded Network Emulation & Chaos Simulator inside runtime gateway structures

Problem

Evaluating low-level proxy resiliency parameters requires deploying external third-party traffic generation tools. Relying on external modules injects unpredictable latency testing metrics and restricts automated testing loops inside closed integration environments.

Proposed Solution

Build an integrated simulation layout inside a dedicated testing package internal/gateway/chaos/.

• Implement non-blocking asynchronous routines that can programmatically inject artificial socket drops, variable latency spikes, and payload bit corruption directly into local ring buffers.
• Expose discrete configuration variables via the gateway config daemon to execute runtime performance tests on local multi-node configurations cleanly.
• Link the metrics output natively to the Prometheus trackers established under issue #6.

Alternatives

• Relying on heavy external Kubernetes chaos operators, which introduce infrastructure dependencies and lack sub-millisecond network injection resolution.

Use Case

Provides deep-tech enterprise operators with an automated framework to perform rigorous reproducible evaluation and stress tests on critical code paths natively.

Start with the proposed internal/gateway/chaos/ package and inspect the gateway config daemon and the Prometheus trackers established under issue #6. The work is complete when asynchronous routines can inject socket drops, latency spikes, and payload corruption into local ring buffers, expose configuration for runtime tests, and link their metrics output to those trackers.