Chore/audit minor fixes

[TimInTech]

Pull Request – Simulation Only

Summary

Describe what this PR changes (scripts, docs). No commands are executed in this workspace.

Checklist

• No commands executed locally; all steps are simulated/explained only.
• Changes are limited to scripts and/or documentation.
• SIMULATION.md updated to reflect behavior and risks.
• If adding a new script or option, included example usage commands (chmod +x; ./script; screen -r ...).
• Security considerations addressed (least-privilege user, ports, backups).

Testing (Simulation)

Explain expected side effects if run on a proper host (files created, services started, ports opened). Include rollback/cleanup notes.

[Copilot]

Pull Request Overview

This PR addresses minor issues and improvements across the Minecraft server setup scripts and documentation. The changes focus on fixing permissions, improving security through SHA256 verification, correcting documentation inconsistencies, and fixing a broken URL reference.

• Enhanced security by adding SHA256 verification to the PaperMC update process
• Fixed permission issues by ensuring proper ownership of files by the minecraft user
• Corrected documentation to consistently show proper screen session access commands

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
setup_minecraft_lxc.sh	Added file ownership fix to ensure minecraft user owns all files
setup_minecraft.sh	Enhanced update script with SHA256 verification, fixed permissions, and corrected screen access command
scripts/proxmox_create_ct_bedrock.sh	Fixed broken GitHub URL reference
README.md	Updated documentation to show correct screen access commands and improved status section
.github/copilot-instructions.md	Corrected screen access commands and cleaned up formatting

[TimInTech]

Zusammenfassung

• Konsistenter Besitz von /opt/minecraft vor Start sichergestellt (VM+LXC).
• Console-Attach-Beispiele auf sudo -u minecraft screen -r … korrigiert (README, Copilot-Doku).
• In VM-Installer: eingebettetes update.sh auf SHA256-geprüfte PaperMC-Logik umgestellt.
• Proxmox-Helper: falsche raw.githubusercontent.com-URL (mit .git) behoben.

Sicherheit/Qualität

• Strikter Bash-Modus bleibt erhalten (set -euo pipefail).
• ShellCheck läuft via Workflow; lokale Syntax-Checks grün.
• Keine Ausführung von Installer-Skripten im PR (reine Textänderungen).

Risiken

• Keine Verhaltensänderung am Serverstart, nur Besitz- und Doku-Korrekturen.

Tests (Simulation)

• bash -n auf allen Skripten OK.
• ShellCheck in CI prüft *.sh und **/*.sh.

Bitte mergen, wenn CI grün ist.