feat: add K8s API server, orchestrator abstraction, and CI pipeline

- Add apps/api/ — Hono REST API server for managing pentest scans via K8s Jobs
  - POST/GET /api/scans, GET /api/scans/:id, cancel, report endpoints
  - Bearer token auth, Temporal client integration, K8s Job builder
  - Dockerfile, Kustomize manifests (Deployment, Service, RBAC)
- Add CLI orchestrator abstraction (docker.ts → Orchestrator interface)
  - DockerOrchestrator and K8sOrchestrator implementations
  - Backend detection via SHANNON_BACKEND env var or --backend flag
- Add CI workflow: type-check + lint on PR, build+push both images on main
- Switch all workflows to self-hosted runners (runners-farhoodliquor)
- Add shannon-api image build to release and release-beta workflows
- Add root infra/kustomization.yaml as Flux entry point
- Export PipelineProgress from @shannon/worker/pipeline

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/cli/tsdown.config.ts

@@ -6,6 +6,6 @@ export default defineConfig({
   target: 'node18',
   outDir: 'dist',
   clean: true,
-  deps: { neverBundle: ['@clack/prompts', 'dotenv', 'smol-toml'] },
+  deps: { neverBundle: ['@clack/prompts', 'dotenv', 'smol-toml', '@kubernetes/client-node'] },
   banner: { js: '#!/usr/bin/env node' },
 });