fix: hyprland config globbing error (source=~), dotfiles deploy stabilität (cp -aT, set -e fix), homelab AGS setup form

modules/core/dotfiles.sh

@@ -28,7 +28,7 @@ with open('$OMERON_PROJECT_DIR/config/omeron.yaml') as f:
     data = yaml.safe_load(f)
 items = data.get('dotfiles', {}).get('items', [])
 print(' '.join(items))
-" 2>/dev/null)"
+" 2>/dev/null)" || true
 
     if [[ -n "$raw_items" ]]; then
       read -ra config_items <<< "$raw_items"
@@ -44,8 +44,10 @@ print(' '.join(items))
     return 0
   fi
 
-  backup_dir="$(backup_file "$HOME/.config/hypr" "$HOME/.dotfiles-backup/$(date +%Y%m%d-%H%M%S)")"
-  backup_dir="$(dirname "$backup_dir" 2>/dev/null || printf '%s' "$HOME/.dotfiles-backup/$(date +%Y%m%d-%H%M%S)")"
+  local backup_timestamp
+  backup_timestamp="$(date +%Y%m%d-%H%M%S)"
+  backup_file "$HOME/.config/hypr" "$HOME/.dotfiles-backup/$backup_timestamp" >/dev/null
+  backup_dir="$HOME/.dotfiles-backup/$backup_timestamp"
 
   for item in "${config_items[@]}"; do
     local source="$dotfiles_dir/$item"