OAuth callback: send Telegram confirmation message after Google auth

src/lambdas/oauth-handler/handler.py

@@ -205,6 +205,26 @@ def handle_callback(params: dict) -> dict:
         except Exception as e:
             print(f'[oauth] DynamoDB update failed: {e}')
 
+    # Best-effort Telegram confirmation
+    try:
+        bot_token_arn = os.environ.get('TELEGRAM_BOT_TOKEN_SECRET_ARN', '')
+        if bot_token_arn and actor_id.startswith('telegram:'):
+            chat_id = actor_id.split(':', 1)[1]
+            bot_token = get_sm().get_secret_value(SecretId=bot_token_arn)['SecretString']
+            tg_text = (
+                f'✅ Google account connected!\n\n'
+                f'{user_email} is now linked. You can now ask me about your Gmail, Calendar, and Drive.'
+            )
+            tg_payload = json.dumps({'chat_id': chat_id, 'text': tg_text}).encode()
+            tg_req = urllib.request.Request(
+                f'https://api.telegram.org/bot{bot_token}/sendMessage',
+                data=tg_payload,
+                headers={'Content-Type': 'application/json'},
+            )
+            urllib.request.urlopen(tg_req, timeout=5)
+    except Exception as e:
+        print(f'[oauth] Telegram notification failed: {e}')
+
     return _html(
         f'<h1>✅ Google account connected!</h1>'
         f'<p>Connected <b>{user_email}</b> to your agent account.</p>'