Add Discord-native hybrid front-end for Jarvis (bot + bridge)

Transform isair/jarvis into a Discord-controlled voice assistant running on
the Ubuntu VNC desktop, keeping the mature ~39k-line Python brain intact.

- bot/ (Node + bun, discord.js): /자비스 slash commands (ephemeral),
  voice channel join + voice receive/playback, pluggable VNC screen broadcast
  (selfbot live / noVNC / screenshot)
- bridge/ (Python, Flask): wraps jarvis STT + run_reply_engine + Piper TTS
  behind a thin localhost HTTP API
- .env.example, scripts/ (start_bridge/start_bot/dev), README rewrite,
  docs/language-comparison.md and docs/vnc-xfce-setup.md

Language decision: hybrid (Python brain + Node/bun Discord layer) because
Discord blocks bot video; native screen broadcast only works via a Node
selfbot library.

scripts/test_bundled_app.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+# Test script to build and run the bundled macOS app locally
+
+set -e
+
+echo "🔨 Building Jarvis Desktop App with PyInstaller..."
+echo ""
+
+# Get to project root
+cd "$(dirname "$0")/.." || exit
+
+# Clean previous builds
+echo "🧹 Cleaning previous builds..."
+rm -rf build dist
+echo ""
+
+# Build with PyInstaller
+echo "📦 Building app bundle..."
+python -m PyInstaller jarvis_desktop.spec
+echo ""
+
+# Check if build succeeded
+if [ -d "dist/Jarvis.app" ]; then
+    echo "✅ Build successful!"
+    echo ""
+    echo "📍 App location: $(pwd)/dist/Jarvis.app"
+    echo ""
+
+    # Show app contents for debugging
+    echo "📂 App structure:"
+    ls -lh dist/Jarvis.app/Contents/MacOS/
+    echo ""
+
+    # Make the app executable
+    chmod +x dist/Jarvis.app/Contents/MacOS/Jarvis
+
+    # Run the app in terminal to see output
+    echo "🚀 Launching app (console mode enabled for debugging)..."
+    echo "   This should open a Terminal window showing the app's output"
+    echo "   If successful, you'll see the Jarvis icon in the menu bar"
+    echo ""
+
+    open -a Terminal dist/Jarvis.app
+
+    echo ""
+    echo "📝 If the app crashes or fails:"
+    echo "   1. Check the Terminal window that opened for error messages"
+    echo "   2. Check ~/Library/Logs/jarvis_desktop_crash.log"
+    echo "   3. Run manually: ./dist/Jarvis.app/Contents/MacOS/Jarvis"
+    echo ""
+else
+    echo "❌ Build failed! Check the output above for errors."
+    exit 1
+fi
+