fix: PageHead header alignment, analytics proxy, and infra improvements (#64)

🤖 Pull request created from `various-fixes` containing PageHead
breadcrumbs and navigation alignment fixes, Umami analytics proxy, and
infrastructure updates.

ci/packer/scripts/02-install-k3s.sh

@@ -19,7 +19,116 @@ k3s --version
 systemctl stop k3s.service || true
 systemctl disable k3s.service || true
 
-# Create configuration directory
+# Create configuration directory and default config
 mkdir -p /etc/rancher/k3s
+cat << 'EOF' > /etc/rancher/k3s/config.yaml
+write-kubeconfig-mode: "0644"
+EOF
+chmod 644 /etc/rancher/k3s/config.yaml
+
+# Pre-stage default GitOps root sync manifest
+mkdir -p /etc/flux
+cat << 'EOF' > /etc/flux/cluster-sync.yaml
+apiVersion: source.toolkit.fluxcd.io/v1
+kind: GitRepository
+metadata:
+  name: ermnvldmr-repo
+  namespace: flux-system
+spec:
+  interval: 1m
+  url: https://github.com/deytenit/ermnvldmr.com.git
+  ref:
+    branch: next
+---
+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
+metadata:
+  name: cluster-sync
+  namespace: flux-system
+spec:
+  interval: 1m
+  sourceRef:
+    kind: GitRepository
+    name: ermnvldmr-repo
+  path: ./ci/k8s/clusters/production
+  prune: true
+  wait: true
+  timeout: 3m
+  decryption:
+    provider: sops
+    secretRef:
+      name: sops-age
+EOF
+
+# Install the cluster bootstrap script into /usr/local/bin
+cat << 'EOF' > /usr/local/bin/bootstrap-cluster.sh
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "=== [Bootstrap] Checking for Secondary Persistent Data Disk ==="
+if [ -b /dev/vdb ]; then
+  echo "Secondary disk /dev/vdb detected."
+  if ! blkid /dev/vdb >/dev/null 2>&1; then
+    echo "Formatting /dev/vdb with ext4 filesystem..."
+    mkfs.ext4 -F -L k3s-storage /dev/vdb
+  fi
+  mkdir -p /var/lib/rancher/k3s/storage
+  if ! grep -qs '/var/lib/rancher/k3s/storage' /proc/mounts; then
+    mount /dev/vdb /var/lib/rancher/k3s/storage
+    echo "LABEL=k3s-storage /var/lib/rancher/k3s/storage ext4 defaults,noatime 0 2" >> /etc/fstab
+    echo "Mounted /dev/vdb to /var/lib/rancher/k3s/storage."
+  fi
+fi
+
+echo "=== [Bootstrap] Starting K3s Service ==="
+systemctl enable --now k3s.service
+
+echo "=== [Bootstrap] Waiting for K3s API server ready ==="
+export KUBECONFIG=/etc/rancher/k3s/k3s.yaml
+until kubectl get nodes >/dev/null 2>&1; do
+  echo "Waiting for Kubernetes API..."
+  sleep 2
+done
+
+echo "=== [Bootstrap] Cluster node is online ==="
+kubectl get nodes
+
+echo "=== [Bootstrap] Setting up Kubectl access for non-root users ==="
+for home_dir in /home/*; do
+  if [ -d "$home_dir" ]; then
+    user_name=$(basename "$home_dir")
+    mkdir -p "$home_dir/.kube"
+    cp /etc/rancher/k3s/k3s.yaml "$home_dir/.kube/config"
+    chown -R "$user_name:$user_name" "$home_dir/.kube"
+    chmod 600 "$home_dir/.kube/config"
+  fi
+done
+
+echo "=== [Bootstrap] Creating flux-system namespace ==="
+kubectl create namespace flux-system --dry-run=client -o yaml | kubectl apply -f -
+
+echo "=== [Bootstrap] Injecting SOPS age decryption key ==="
+if [ -f /root/.config/sops/age/keys.txt ]; then
+  kubectl create secret generic sops-age \
+    --namespace=flux-system \
+    --from-file=age.agekey=/root/.config/sops/age/keys.txt \
+    --dry-run=client -o yaml | kubectl apply -f -
+  echo "sops-age secret created."
+else
+  echo "WARNING: /root/.config/sops/age/keys.txt not found. Inject key manually via kubectl."
+fi
+
+echo "=== [Bootstrap] Installing Flux Operator / Custom Resources ==="
+kubectl apply -k "https://github.com/fluxcd/flux2/manifests/install?ref=v2.4.0" || true
+
+echo "=== [Bootstrap] Applying initial GitOps root sync ==="
+if [ -f /etc/flux/cluster-sync.yaml ]; then
+  kubectl apply -f /etc/flux/cluster-sync.yaml
+fi
+
+echo "=== [Bootstrap] First-Boot Bootstrap Sequence Complete ==="
+EOF
+
+chmod 755 /usr/local/bin/bootstrap-cluster.sh
 
 echo "=== K3s Pre-installation Complete ==="