feat: rusty-anchor WoL, auto dark/light VT theme, wakeonlan on phantom-ship 🦀

- Enable Wake-on-LAN (magic packet) on rusty-anchor enp2s0 via systemd service
- Add vt-theme script to rusty-anchor: switches between Catppuccin Latte/Mocha
- Theme state persisted in /etc/vt-theme, applied on login via profile.d
- alacritty-sync-system-theme.sh now SSHes to rusty-anchor and pushes the
  macOS light/dark change (best-effort, non-blocking, skips if unchanged)
- Add wakeonlan to phantom-ship packages (wakeonlan 00:16:cb:87:20:ba)

nixos/hosts/phantom-ship.nix

@@ -82,6 +82,7 @@ in
     git        # clone/bootstrap and dotfiles-rebuild timer
     nodejs     # npm for openclaw plugin installs
     python3    # node-gyp dependency for openclaw plugins
+    wakeonlan  # wake rusty-anchor: wakeonlan 00:16:cb:87:20:ba
   ];
 
   # OpenClaw AI gateway — Telegram bot, Anthropic API.

scripts/alacritty-sync-system-theme.sh

@@ -44,3 +44,22 @@ fi
 
 chmod 0644 "$tmp"
 mv -f "$tmp" "$ACTIVE"
+
+# Sync theme to rusty-anchor VT console (best-effort, non-blocking)
+RUSTY_ANCHOR_KEY="$HOME/.ssh/id_ed25519_phantom_ship"
+RUSTY_ANCHOR_THEME_FILE="/etc/vt-theme"
+if [[ -f "$RUSTY_ANCHOR_KEY" ]]; then
+  last_rusty="$ALACRITTY_DIR/.last-rusty-anchor-theme"
+  if [[ "$(cat "$last_rusty" 2>/dev/null)" != "$want" ]]; then
+    (
+      ssh -i "$RUSTY_ANCHOR_KEY" \
+          -J danny@phantom-ship \
+          -o ConnectTimeout=5 \
+          -o StrictHostKeyChecking=no \
+          danny@10.0.0.2 \
+          "echo '$want' | sudo tee $RUSTY_ANCHOR_THEME_FILE > /dev/null && sudo /usr/local/bin/vt-theme '$want' /dev/tty1" \
+          2>/dev/null \
+        && printf '%s' "$want" >"$last_rusty"
+    ) &
+  fi
+fi