[core]: Feature - Check Quorum Status in create_lxc to prevent issues

[MickLesk]

✍️ Description

In a Proxmox VE cluster, it is not allowed to make changes to the cluster configuration (such as creating a CT or VM) if the cluster is not “quorate”. This means: If the cluster does not reach a quorum (e.g. with a 2-node cluster and only one node is online), actions such as pct create, qm create, etc. are not allowed - even if you are directly on the working node.

In the same stage, i move "create_lxc" from ct-Folder to misc-Folder

Related to this:
=> #5245

if an cluster (node) is offline, create_lxc failed, because proxmox need an quorum for clusters.
[ERROR] in line 1127 #5169
=> User-Feedback: #5169 (comment)

Output:

🔗 Related PR / Issue

Link: #5169 #5245

✅ Prerequisites (X in brackets)

• Self-review completed – Code follows project standards.
• Tested thoroughly – Changes work as expected.
• No security risks – No hardcoded secrets, unnecessary privilege escalations, or permission issues.

---

🛠️ Type of Change (X in brackets)

• 🐞 Bug fix – Resolves an issue without breaking functionality.
• ✨ New feature – Adds new, non-breaking functionality.
• 💥 Breaking change – Alters existing functionality in a way that may require updates.
• 🆕 New script – A fully functional and tested script or script set.
• 🌍 Website update – Changes to website-related JSON files or metadata.
• 🔧 Refactoring / Code Cleanup – Improves readability or maintainability without changing functionality.
• 📝 Documentation update – Changes to README, AppName.md, CONTRIBUTING.md, or other docs.