Add Flux GitOps bootstrap for minikube

Set up a complete GitOps pipeline using Flux CD to manage a minikube
cluster. Includes bootstrap script, Traefik ingress controller via
HelmRelease, and a hello-world nginx deployment.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

infrastructure/traefik/helmrelease.yaml

@@ -0,0 +1,33 @@
+---
+apiVersion: helm.toolkit.fluxcd.io/v2
+kind: HelmRelease
+metadata:
+  name: traefik
+  namespace: flux-system
+spec:
+  interval: 10m0s
+  targetNamespace: traefik
+  storageNamespace: traefik
+  chart:
+    spec:
+      chart: traefik
+      version: ">=34.0.0 <35.0.0"
+      sourceRef:
+        kind: HelmRepository
+        name: traefik
+      reconcileStrategy: ChartVersion
+  install:
+    createNamespace: true
+    remediation:
+      retries: 3
+  upgrade:
+    remediation:
+      retries: 3
+  values:
+    service:
+      type: NodePort
+    ports:
+      web:
+        nodePort: 30080
+      websecure:
+        nodePort: 30443