stage-13: WhatsApp bridge with Baileys + Python adapter

Node.js bridge (bridge/whatsapp/): Baileys client with Express HTTP API
on localhost:8098 — QR code linking, message queue, reconnection logic.

Python adapter (src/adapters/whatsapp.py): polls bridge every 2s, routes
through router.py, separate whatsapp.owner/admins auth, security logging.

Integrated in main.py alongside Discord + Telegram via asyncio.gather.
CLI: echo whatsapp status/qr. 442 tests pass (32 new, zero failures).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/main.py

@@ -118,6 +118,14 @@ def main():
     else:
         logger.info("No telegram_token — Telegram bot disabled")
 
+    # WhatsApp adapter (optional — only if whatsapp is enabled in config)
+    whatsapp_enabled = config.get("whatsapp", {}).get("enabled", False)
+    whatsapp_bridge_url = config.get("whatsapp", {}).get("bridge_url", "http://127.0.0.1:8098")
+    if whatsapp_enabled:
+        logger.info("WhatsApp adapter configured (bridge: %s)", whatsapp_bridge_url)
+    else:
+        logger.info("WhatsApp adapter disabled")
+
     # PID file
     PID_FILE.write_text(str(os.getpid()))
 
@@ -133,7 +141,7 @@ def main():
     signal.signal(signal.SIGINT, handle_signal)
 
     async def _run_all():
-        """Run Discord + Telegram bots concurrently."""
+        """Run Discord + Telegram + WhatsApp bots concurrently."""
         tasks = [asyncio.create_task(client.start(token))]
         if telegram_app:
             async def _run_telegram():
@@ -149,6 +157,14 @@ def main():
                     await telegram_app.stop()
                     await telegram_app.shutdown()
             tasks.append(asyncio.create_task(_run_telegram()))
+        if whatsapp_enabled:
+            from src.adapters.whatsapp import run_whatsapp, stop_whatsapp
+            async def _run_whatsapp():
+                try:
+                    await run_whatsapp(config, whatsapp_bridge_url)
+                except asyncio.CancelledError:
+                    stop_whatsapp()
+            tasks.append(asyncio.create_task(_run_whatsapp()))
         await asyncio.gather(*tasks)
 
     try: