chore: scaffold Mudfish VPN decky plugin

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

scripts/deploy.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+# Build the frontend and install the plugin on the Steam Deck, then restart Decky.
+# Needs passwordless sudo for the deck user (development only).
+set -euo pipefail
+cd "$(dirname "$0")/.."
+DECK="${DECK:-deck@192.168.1.50}"
+pnpm build
+tar --exclude='__pycache__' -cf - dist main.py plugin.json package.json py_modules | ssh "$DECK" '
+  D=/home/deck/homebrew/plugins/mudfish-decky
+  sudo rm -rf "$D" && sudo mkdir -p "$D" && sudo tar -xf - -C "$D" &&
+  sudo systemctl restart plugin_loader'
+echo "deployed to $DECK"