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

apps/api/k8s/base/deployment.yaml

@@ -0,0 +1,50 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: api
+  labels:
+    app: api
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: api
+  template:
+    metadata:
+      labels:
+        app: api
+    spec:
+      containers:
+        - name: api
+          image: ghcr.io/OWNER/homelab-api:latest
+          ports:
+            - containerPort: 4000
+          env:
+            - name: DATABASE_URL
+              valueFrom:
+                secretKeyRef:
+                  name: api-secrets
+                  key: database-url
+            - name: VALKEY_URL
+              valueFrom:
+                secretKeyRef:
+                  name: api-secrets
+                  key: valkey-url
+          resources:
+            requests:
+              memory: 128Mi
+              cpu: 100m
+            limits:
+              memory: 512Mi
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: 4000
+            initialDelaySeconds: 5
+            periodSeconds: 10
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: 4000
+            initialDelaySeconds: 15
+            periodSeconds: 20