cleanup: Archive old complex scripts and documentation

- Move all old complex backup scripts to old_scripts/
- Archive previous documentation versions
- Clean up temporary files and debian packages
- Update README to focus on new simple system
- Keep only the enhanced simple backup system in main directory

Main directory now contains only:
- simple_backup_gui.py (GUI interface)
- enhanced_simple_backup.sh (CLI interface)
- list_drives.sh (helper)
- simple_backup.sh (basic CLI)
- SIMPLE_BACKUP_README.md (detailed docs)
- README.md (project overview)

old_scripts/install_borg.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+# Install BorgBackup for cloud backups
+echo "🔧 Installing BorgBackup for cloud backup functionality..."
+
+# Update package list
+sudo apt update
+
+# Install borgbackup
+sudo apt install -y borgbackup
+
+# Check installation
+if command -v borg >/dev/null 2>&1; then
+    echo "✅ BorgBackup installed successfully!"
+    borg --version
+    echo
+    echo "📖 Usage:"
+    echo "1. Run the LVM Backup GUI"
+    echo "2. Click '☁️ Borg to Cloud' button"
+    echo "3. GUI will automatically:"
+    echo "   - Create LVM snapshots if needed"
+    echo "   - Mount snapshots (including encrypted home)"
+    echo "   - Initialize Borg repository in ~/Nextcloud/backups/"
+    echo "   - Create compressed, deduplicated backup"
+    echo "   - Clean up automatically"
+    echo
+    echo "🔐 Benefits:"
+    echo "   - Compressed backups (save space)"
+    echo "   - Deduplication (only store changes)"
+    echo "   - Encrypted storage"
+    echo "   - Automatic Nextcloud sync"
+    echo "   - Incremental backups"
+else
+    echo "❌ BorgBackup installation failed"
+    exit 1
+fi