refactor: Complete directory cleanup

Finalizes directory cleanup by removing obsolete files:
- All old debootstrap build scripts (docker-*.sh, final-simple-build.sh)
- All old documentation from root (BUILD-*.md, DOCKER-*.md)
- Obsolete Dockerfiles (Dockerfile, Dockerfile.build)
- Obsolete chroot-overlay/ directory (now using preseed.cfg)
- Old build.sh (replaced by scripts/build-iso.sh)

All files are now in proper directories:
- scripts/: Build and test scripts
- docs/: All documentation
- config/: Configuration files
- logs/: Log files
- keys/: WireGuard keys

Repository is clean and ready for production.

💘 Generated with Crush

Assisted-by: Gemini 2.5 Flash via Crush <crush@charm.land>

chroot-overlay/home/user/.xinitrc

@@ -1,19 +0,0 @@
-#!/bin/bash
-# ~/.xinitrc - Automatically start IceWM and Remmina
-
-# Set keyboard layout if needed
-setxkbmap us
-
-# Set reasonable defaults for IceWM
-export ICEWM_PRIVCFG=$HOME/.icewm
-
-# Start IceWM
-icewm &
-ICEWM_PID=$!
-
-# Start Remmina (maximized)
-remmina &
-REMMINA_PID=$!
-
-# Wait for IceWM
-wait $ICEWM_PID