docs: add k1s quick deploy section

documentation/kubernetes-deployment.md

@@ -4,6 +4,31 @@ Deploy FlaskPaste to a Kubernetes cluster using images from Harbor registry.
 
 ---
 
+## Quick Deploy (k1s)
+
+Single-node k1s cluster deployment:
+
+```bash
+# Restart deployment to pull latest image
+ssh k1s "kubectl -n flaskpaste rollout restart deployment/flaskpaste"
+
+# Watch rollout progress
+ssh k1s "kubectl -n flaskpaste rollout status deployment/flaskpaste"
+
+# Verify deployment
+ssh k1s "kubectl -n flaskpaste get pods"
+ssh k1s "curl -s http://\$(kubectl -n flaskpaste get pod -o jsonpath='{.items[0].status.podIP}'):5000/health"
+```
+
+| Property | Value |
+|----------|-------|
+| Host | k1s (192.168.122.241) |
+| Namespace | flaskpaste |
+| Image | harbor.mymx.me/library/flaskpaste:slim |
+| Pull Policy | Always |
+
+---
+
 ## Architecture
 
 ```