Update kubeconfig paths in setup-k3s.yaml and main.yaml for consistency

ansible/playbooks/setup-k3s.yaml

@@ -1,14 +1,13 @@
 ---
-# Run: ansible-playbook -i ansible/inventory.yaml ansible/playbooks/setup-k3s.yaml
+# Run: ansible-playbook ansible/playbooks/setup-k3s.yaml -K
 #
 # What this does:
 #   - Installs K3s in server mode (with Traefik disabled)
 #   - Installs Helm
-#   - Fetches kubeconfig to /tmp/k3s-minisforum.yaml on your workstation
+#   - Fetches kubeconfig to ~/.kube/config on your workstation
 #   - Labels the node as node-role=primary
 #
 # After this playbook:
-#   export KUBECONFIG=/tmp/k3s-minisforum.yaml
 #   kubectl get nodes   # should show minisforum as Ready
 #
 # Then deploy Traefik:

ansible/roles/k3s-server/tasks/main.yaml

@@ -46,7 +46,7 @@
 - name: Fetch kubeconfig to workstation
   ansible.builtin.fetch:
     src: /etc/rancher/k3s/k3s.yaml
-    dest: /tmp/k3s-minisforum.yaml
+    dest: ~/.kube/config
     flat: true
 
 - name: Fix kubeconfig server address