feat: add twilio whatsapp integration

requirements.txt

@@ -7,3 +7,5 @@ pydantic
 
 SQLAlchemy==2.0.29
 psycopg2-binary==2.9.9
+
+twilio==8.4.0

src/curaflow_agent/activities.py

@@ -98,10 +98,33 @@ async def send_alert_activity(alert_data: dict) -> str:
     """
     Mocks sending an alert to the physician.
     """
-    # In a real app, this might send an SMS via Twilio or a push notification.
-    # We will just print it out.
-    print(f"!!! CRITICAL ALERT Triggered !!!\n{alert_data['danger_explanation']}\nRecommended Action: {alert_data['recommended_action']}")
-    return "Alert successfully dispatched to physician."
+    # Real Twilio WhatsApp Integration
+    from twilio.rest import Client
+    import traceback
+    
+    # Credentials from environment or fallbacks
+    account_sid = os.environ.get("TWILIO_ACCOUNT_SID", "AC601e1962dc8417ddb3ae53cd8d865020")
+    auth_token = os.environ.get("TWILIO_AUTH_TOKEN", "08a68571a251d6d62f60dc83fc725b5a")
+    twilio_from = os.environ.get("TWILIO_FROM_NUMBER", "whatsapp:+14155238886")
+    physician_number = os.environ.get("PHYSICIAN_WHATSAPP_NUMBER", "whatsapp:+918500176938")
+    
+    msg_body = f"🚨 *CURAFLOW CRITICAL ALERT* 🚨\n\n*Anomaly Detected:*\n{alert_data.get('danger_explanation', 'Unknown danger')}\n\n*Recommended Action:*\n{alert_data.get('recommended_action', 'Review immediately.')}"
+    
+    print(f"!!! Triggering Real Twilio WhatsApp Alert to {physician_number} !!!")
+    
+    try:
+        client = Client(account_sid, auth_token)
+        message = client.messages.create(
+            from_=twilio_from,
+            body=msg_body,
+            to=physician_number
+        )
+        print(f"WhatsApp message sent successfully! SID: {message.sid}")
+        return f"WhatsApp alert dispatched (SID: {message.sid})"
+    except Exception as e:
+        print(f"Failed to send WhatsApp message: {str(e)}")
+        traceback.print_exc()
+        return f"Failed to dispatch WhatsApp alert: {str(e)}"
 
 @activity.defn
 async def save_clinical_record_activity(payload: dict) -> str: