feat: add Playwright configuration and initial e2e test for authentication

- Created Playwright configuration file to set up testing environment.
- Added a new e2e test for user authentication in login.spec.ts.
- Updated tsconfig.node.json to include playwright.config.ts.
- Enhanced vite.config.ts to include API proxying for backend integration.
- Added a placeholder for last run test results in .last-run.json.

backend/app/models/__init__.py

@@ -12,8 +12,10 @@ from .base import (
 	StationModel,
 	TrackCreate,
 	TrackModel,
+	TrainScheduleCreate,
 	TrainCreate,
 	TrainModel,
+	UserCreate,
 	to_camel,
 )
 
@@ -29,7 +31,9 @@ __all__ = [
 	"StationModel",
 	"TrackCreate",
 	"TrackModel",
+	"TrainScheduleCreate",
 	"TrainCreate",
 	"TrainModel",
+	"UserCreate",
 	"to_camel",
 ]