SIENTIAPDE-1248: Integrate MinIO for object storage and add related configurations

This commit introduces MinIO integration for object storage within the Model Manager system. It includes:

- Added MinIO activity class for file operations (fetch, delete).
- Updated Activities orchestrator to include MinIO activities.
- Added MinIO configuration builder to utils/connectors_config.py.
- Added environment variables for MinIO configuration in .env.example.
- Added boto3 and botocore dependencies to requirements.txt.
- Added unit tests for MinIO activities.

tests/laborious/activities/test_gates.py

@@ -117,6 +117,25 @@ async def test_input_gate_with_filter(gates_activity):
     gates_activity.debug.assert_called()
 
 
+@mark.asyncio
+async def test_input_gate_filter_returns_false(gates_activity):
+    """Test to cover line 129 branch when filter returns False (filter passes)."""
+    # Arrange - Use data that will NOT trigger EMPTY_DATA filter (has data)
+    input_data = {
+        **metadata,
+        'filters': {'EMPTY_DATA': {'policy': 'STOP', 'config': {}}},
+        'data': {'value': [1, 2, 3, 4, 5]},  # Has data, filter returns False
+        'path_priority': ['STOP', 'CONTINUE', 'REPEAT'],
+    }
+
+    # Act
+    result = await gates_activity.input_gate(input_data)
+
+    # Assert - Filter returns False, so no policy is added to filter_output
+    assert result == (None, 0, '')  # No filter triggered
+    gates_activity.debug.assert_called()
+
+
 @mark.asyncio
 async def test_mlflow_response_gate_invalid_filter(gates_activity):
     # Arrange
@@ -210,6 +229,29 @@ async def test_mlflow_response_gate_with_filter(gates_activity):
     gates_activity.send_notification.assert_called()
 
 
+@mark.asyncio
+async def test_mlflow_response_gate_filter_returns_false(gates_activity):
+    """Test to cover line 208 branch when filter returns False (no API error)."""
+    # Arrange - Use data that will NOT trigger API_ERROR filter (success=True)
+    input_data = {
+        **metadata,
+        'filters': {'API_ERROR': {'policy': 'STOP'}},
+        'data': {
+            'success': True,  # Success=True, filter returns False
+            'content': {'message': 'Operation successful', 'result': 'data'},
+        },
+        'type': 'transform',
+        'path_priority': ['STOP', 'CONTINUE', 'REPEAT'],
+    }
+
+    # Act
+    result = await gates_activity.mlflow_response_gate(input_data)
+
+    # Assert - Filter returns False, so no policy is added to filter_output
+    assert result == (None, 0, '')  # No filter triggered
+    gates_activity.debug.assert_called()
+
+
 @mark.asyncio
 async def test_mlflow_content_gate_invalid_filter(gates_activity):
     # Arrange
@@ -304,6 +346,26 @@ async def test_mlflow_content_gate_with_filter(gates_activity):
     gates_activity.send_notification.assert_called()
 
 
+@mark.asyncio
+async def test_mlflow_content_gate_filter_returns_false(gates_activity):
+    """Test to cover line 293 branch when filter returns False (no NaN values)."""
+    # Arrange - Use data that will NOT trigger NAN_VALUES filter (no NaN)
+    input_data = {
+        **metadata,
+        'filters': {'NAN_VALUES': {'policy': 'STOP', 'config': {}}},
+        'data': {'value': [1.0, 2.0, 3.0, 4.0, 5.0]},  # All valid numbers, no NaN
+        'type': 'predict',
+        'path_priority': ['STOP', 'CONTINUE', 'REPEAT'],
+    }
+
+    # Act
+    result = await gates_activity.mlflow_content_gate(input_data)
+
+    # Assert - Filter returns False, so no policy is added to filter_output
+    assert result == (None, 0, '')  # No filter triggered
+    gates_activity.debug.assert_called()
+
+
 def test_get_prediction_store_policy_invalid_policy(gates_activity):
     # Arrange
     prediction_store_policy = 'INVALID_POLICY'