fix: broken inlining of python block moved to script

scripts/new_host.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+import argparse, os, sys
+try:
+    import yaml
+except Exception as e:
+    print("ERROR: PyYAML is required. Install with: pip install pyyaml", file=sys.stderr)
+    sys.exit(2)
+
+def main():
+    p = argparse.ArgumentParser(description="Add a host to inventory/servers.yaml")
+    p.add_argument("--name", required=True)
+    p.add_argument("--type", default="cpx21")
+    p.add_argument("--region", default="nbg1")
+    p.add_argument("--role", default="generic")
+    p.add_argument("--image", default="ubuntu-24.04")
+    p.add_argument("--user", default="admin")
+    args = p.parse_args()
+
+    inv_path = os.path.join("inventory", "servers.yaml")
+    data = {}
+    if os.path.exists(inv_path):
+        with open(inv_path, "r", encoding="utf-8") as f:
+            data = yaml.safe_load(f) or {}
+    servers = data.setdefault("servers", [])
+
+    # Prevent duplicates
+    if any(s.get("name") == args.name for s in servers):
+        print(f"ERROR: host '{args.name}' already exists in {inv_path}", file=sys.stderr)
+        sys.exit(1)
+
+    servers.append({
+        "name": args.name,
+        "labels": [],
+        "role": args.role,
+        "region": args.region,
+        "type": args.type,
+        "image": args.image,
+        "ssh_user": args.user,
+    })
+
+    with open(inv_path, "w", encoding="utf-8") as f:
+        yaml.safe_dump(data, f, sort_keys=False)
+
+if __name__ == "__main__":
+    main()