Fix critical bugs

tests/services/test_quick_reply_session.py

@@ -17,6 +17,7 @@ from capa_de_integracion.services.storage.redis import RedisService
 def mock_redis():
     """Create mock Redis service."""
     redis = Mock(spec=RedisService)
+    redis.get_session = AsyncMock()
     redis.save_session = AsyncMock()
     return redis
 
@@ -67,6 +68,7 @@ async def test_validate_phone_whitespace(service):
 async def test_start_session_new_user(service, mock_firestore, mock_redis, mock_content):
     """Test starting a quick reply session for a new user."""
     # Setup mocks
+    mock_redis.get_session.return_value = None  # No session in Redis
     mock_firestore.get_session_by_phone.return_value = None  # No existing session
 
     # Mock create_session to return a session with the ID that was passed in
@@ -100,6 +102,7 @@ async def test_start_session_new_user(service, mock_firestore, mock_redis, mock_
     assert result.session_id is not None  # Session ID should be generated
     assert result.quick_replies.header == "Home Screen"
 
+    mock_redis.get_session.assert_called_once_with("555-1234")
     mock_firestore.get_session_by_phone.assert_called_once_with("555-1234")
     mock_firestore.create_session.assert_called_once()
 
@@ -123,6 +126,7 @@ async def test_start_session_existing_user(service, mock_firestore, mock_redis,
         telefono="555-1234",
         pantalla_contexto="old_screen",
     )
+    mock_redis.get_session.return_value = None  # Not in Redis cache
     mock_firestore.get_session_by_phone.return_value = test_session
 
     test_quick_replies = QuickReplyScreen(
@@ -145,6 +149,7 @@ async def test_start_session_existing_user(service, mock_firestore, mock_redis,
     assert result.session_id == test_session_id
     assert result.quick_replies.header == "Payments Screen"
 
+    mock_redis.get_session.assert_called_once_with("555-1234")
     mock_firestore.get_session_by_phone.assert_called_once_with("555-1234")
     mock_firestore.update_pantalla_contexto.assert_called_once_with(
         test_session_id,