refactor: improve model imports for better alembic support

- Uses pathlib for traversing model paths to import for alembic.
- Ensures subdirectory models are also imported automatically.

Generated-by: aiautocommit

Author: iloveitaly

app/models/__init__.py

@@ -1,13 +1,22 @@
 """
-For alembic to properly pick up on all model metadata all models must be imported here
+For alembic to properly pick up on all model metadata all models must be imported here.
+
+This imports all models in the current directory and subdirectories.
 """
 
 import importlib
-import pkgutil
+from pathlib import Path
 
 from app import log
-from app.setup import get_root_path
 
-for _, module_name, _ in pkgutil.iter_modules([str(get_root_path() / "app/models")]):
-    log.debug("auto importing", model=f"{__package__}.{module_name}")
-    importlib.import_module(f"{__package__}.{module_name}")
+models_path = Path(__file__).parent
+
+for py_file in models_path.rglob("*.py"):
+    if py_file.name in ["__init__.py", "__main__.py"]:
+        continue
+
+    rel_path = py_file.relative_to(models_path)
+    module_parts = rel_path.with_suffix("").parts
+    module_name = f"{__package__}." + ".".join(module_parts)
+    log.debug("auto importing", model=module_name)
+    importlib.import_module(module_name)