Standardize and finalize Gateway API, KrakenD, Tyk, and Auth0 integration

[RajivBB]

Overview

• Migrate from legacy NGINX ingress to a modern, cloud-native gateway architecture using Envoy Gateway API, KrakenD for API routing, Tyk for WebSocket support, and Auth0 for authentication/authorization.

Objectives

• Replace NGINX ingress with Envoy-based Gateway API implementation
• Deploy KrakenD as the primary API gateway with flexible Helm-based configuration
• Integrate Tyk for WebSocket support
• Implement Auth0 for centralized authentication and authorization
• Provide comprehensive documentation for setup and configuration