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/DRIVE_SELECTION_REFERENCE.md

@@ -0,0 +1,52 @@
+# Drive Selection Reference
+
+Based on your system screenshots, here's the correct drive mapping:
+
+## Current System Layout (from screenshots):
+
+### Available Drives:
+- **`/dev/nvme0n1`** - 476.9G KXG6AZNV512G TOSHIBA
+  - ✅ **INTERNAL DRIVE** (source)
+  - This is your current system with:
+    - nvme0n1p1: 58GB Linux filesystem (root)
+    - nvme0n1p2: 512MB EFI system  
+    - nvme0n1p3: 417GB Linux filesystem (home)
+
+- **`/dev/sda`** - 476.9G Tech JMicron
+  - ✅ **EXTERNAL M.2 SSD** (target)
+  - This should be selected as migration TARGET
+  - Will be completely wiped and converted to LVM
+
+- **`/dev/sdb`** - 119.3G Extreme Pro SanDisk
+  - 🔧 **USB STICK** (migration tools)
+  - This USB stick with the migration tools
+  - Should NOT be selected for migration
+
+## Correct Migration Configuration:
+
+```
+Source (Internal): /dev/nvme0n1 → Target (External): /dev/sda
+```
+
+## What the Enhanced Script Now Does:
+
+1. **Excludes USB stick** - Won't offer /dev/sdb as an option
+2. **Shows drive details** - Displays size, model, USB detection
+3. **Suggests configuration**:
+   - Internal: /dev/nvme0n1 (NVMe drives are typically internal)
+   - External: /dev/sda (USB-connected drives are typically external)
+4. **User confirmation** - Asks you to confirm before proceeding
+5. **Final safety check** - Shows exactly what will be wiped
+6. **Type 'YES' confirmation** - Prevents accidental data loss
+
+## Migration Process:
+
+1. **Boot from USB** (/dev/sdb)
+2. **Run migration script**
+3. **Script will suggest**:
+   - Internal: /dev/nvme0n1 (476.9G TOSHIBA)
+   - External: /dev/sda (476.9G JMicron) 
+4. **Confirm selection**
+5. **Type 'YES' to proceed**
+
+This should prevent the wrong drive selection issue you encountered!