Initial monorepo scaffold

Turborepo + pnpm monorepo for k3s homelab cluster on Intel NUCs.

- Apps: Next.js web frontend, Express API (TypeScript, Dockerfiles, k8s manifests)
- Packages: shared UI, ESLint config, TypeScript config, Drizzle DB schemas
- Infra/Ansible: bare-metal provisioning with roles for common, k3s-server, k3s-agent, hardening
- Infra/Kubernetes: ArgoCD GitOps (app-of-apps + ApplicationSets), platform components
  (cert-manager, Traefik, CloudNativePG, Valkey, Longhorn, Sealed Secrets), namespaces
- Observability: kube-prometheus-stack, Loki, Promtail as ArgoCD Applications
- CI/CD: GitHub Actions for PR builds, preview deploys, production deploys
- DX: Taskfile, utility scripts, copier templates, Ubiquiti network docs

templates/nextjs-app/{{app_name}}/package.json.jinja

@@ -0,0 +1,23 @@
+{
+  "name": "@homelab/{{ app_name }}",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev --port {{ port }}",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint",
+    "test": "echo \"no tests yet\""
+  },
+  "dependencies": {
+    "next": "^15.1.0",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0"
+  },
+  "devDependencies": {
+    "@types/node": "^22.10.0",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
+    "typescript": "^5.7.0"
+  }
+}

templates/nextjs-app/{{app_name}}/src/app/page.tsx.jinja

@@ -0,0 +1,7 @@
+export default function Home() {
+  return (
+    <main style={{ padding: "2rem", fontFamily: "system-ui, sans-serif" }}>
+      <h1>{{ title }}</h1>
+    </main>
+  );
+}