Add comprehensive tests for dose tracking functionality

- Implemented `test_dose_parsing_simple.py` to validate the dose parsing workflow.
- Created `test_dose_save.py` to verify the saving functionality of dose tracking.
- Added `test_dose_save_simple.py` for programmatic testing of dose saving without UI interaction.
- Developed `test_final_workflow.py` to test the complete dose tracking workflow, ensuring doses are preserved during edits.
- Enhanced `conftest.py` with a mock pathology manager for testing.
- Updated `test_data_manager.py` to include pathology manager in DataManager tests and ensure compatibility with new features.

tests/conftest.py

@@ -84,6 +84,17 @@ def mock_medicine_manager():
     return mock_manager
 
 
+@pytest.fixture
+def mock_pathology_manager():
+    """Create a mock pathology manager with default pathologies for testing."""
+    mock_manager = Mock()
+
+    # Default pathologies matching the original system
+    mock_manager.get_pathology_keys.return_value = ["depression", "anxiety", "sleep", "appetite"]
+
+    return mock_manager
+
+
 @pytest.fixture
 def sample_data():
     """Sample data for testing."""