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/generate_config_examples.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+"""
+Script to generate example configuration files from the default values in config.py.
+This ensures config examples stay in sync with the actual defaults.
+"""
+
+import json
+import sys
+from pathlib import Path
+
+# Add src to path so we can import jarvis modules
+script_dir = Path(__file__).parent
+project_root = script_dir.parent
+src_dir = project_root / "src"
+sys.path.insert(0, str(src_dir))
+
+from jarvis.config import export_example_config
+
+
+def generate_config_example() -> None:
+    """Generate examples/config.json from defaults."""
+    config = export_example_config(include_db_path=False)
+    
+    # Generate the config file
+    config_path = project_root / "examples" / "config.json"
+    with config_path.open("w", encoding="utf-8") as f:
+        json.dump(config, f, indent=2)
+        f.write("\n")  # Add trailing newline
+    
+    print(f"Generated {config_path}")
+
+
+def main() -> None:
+    """Generate all example configuration files."""
+    print("Generating configuration examples from defaults...")
+    
+    generate_config_example()
+    
+    print("\nDone! Example files are now in sync with config.py defaults.")
+
+
+if __name__ == "__main__":
+    main()