chore: Remove Kong references, make infrastructure examples generic
Replaced Kong-specific examples with generic infrastructure scenarios:
- Known-answer questions: database timeout, model loading, GPU memory
- K8s manifest: generic timeout annotations (cloud-provider agnostic)
- Removed Kong timeouts, routes, plugins
- Added gateway configuration guidance for various platforms
- Updated HF token secret management
Benefits:
- System is now cloud-provider agnostic
- Works with any gateway (Istio, Nginx, cloud LB, etc.)
- Examples are more universally applicable
- Easier to adapt to different infrastructure
Affected files:
- verify/known-answers.yaml (3 generic scenarios)
- M3.4-GATE.md (updated expected answers)
- k8s/apps/llm-serving/memory-isvc.yaml (cloud-agnostic setup)