feat: Initialize frontend and backend structure with essential configurations

- Added TypeScript build info for frontend.
- Created Vite configuration for React application.
- Implemented pre-commit hook to run checks before commits.
- Set up PostgreSQL Dockerfile with PostGIS support and initialization scripts.
- Added database creation script for PostgreSQL with necessary extensions.
- Established Python project configuration with dependencies and development tools.
- Developed pre-commit script to enforce code quality checks for backend and frontend.
- Created PowerShell script to set up Git hooks path.

backend/tests/test_models.py

@@ -0,0 +1,51 @@
+from datetime import datetime, timezone
+
+from backend.app.models import StationModel, TrackModel, TrainModel
+
+
+def _now() -> datetime:
+    return datetime.now(timezone.utc)
+
+
+def test_station_model_round_trip() -> None:
+    timestamp = _now()
+    station = StationModel(
+        id="station-1",
+        name="Central",
+        latitude=52.52,
+        longitude=13.405,
+        created_at=timestamp,
+        updated_at=timestamp,
+    )
+    assert station.name == "Central"
+    assert station.model_dump()["id"] == "station-1"
+
+
+def test_track_model_properties() -> None:
+    timestamp = _now()
+    track = TrackModel(
+        id="track-1",
+        start_station_id="station-1",
+        end_station_id="station-2",
+        length_meters=1500.0,
+        max_speed_kph=120.0,
+        created_at=timestamp,
+        updated_at=timestamp,
+    )
+    assert track.length_meters > 0
+    assert track.start_station_id != track.end_station_id
+
+
+def test_train_model_operating_tracks() -> None:
+    timestamp = _now()
+    train = TrainModel(
+        id="train-1",
+        designation="Express",
+        capacity=350,
+        max_speed_kph=200.0,
+        operating_track_ids=["track-1", "track-2"],
+        created_at=timestamp,
+        updated_at=timestamp,
+    )
+    assert train.capacity >= 0
+    assert len(train.operating_track_ids) == 2