Restructured src to more logical heirachy

core/__init__.py

@@ -0,0 +1,17 @@
+"""
+Core module for NHS High-Cost Drug Patient Pathway Analysis Tool.
+
+Contains configuration, models, and shared utilities used across the application.
+"""
+
+from core.config import PathConfig, default_paths
+from core.models import AnalysisFilters
+from core.logging_config import setup_logging, get_logger
+
+__all__ = [
+    "PathConfig",
+    "default_paths",
+    "AnalysisFilters",
+    "setup_logging",
+    "get_logger",
+]