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/app/repositories/tracks.py

@@ -0,0 +1,50 @@
+from __future__ import annotations
+
+import sqlalchemy as sa
+from geoalchemy2.elements import WKTElement
+from uuid import UUID
+from sqlalchemy.orm import Session
+
+from backend.app.db.models import Track
+from backend.app.repositories.base import BaseRepository
+from backend.app.models import TrackCreate
+
+
+class TrackRepository(BaseRepository[Track]):
+    model = Track
+
+    def __init__(self, session: Session) -> None:
+        super().__init__(session)
+
+    def list_all(self) -> list[Track]:
+        statement = sa.select(self.model)
+        return list(self.session.scalars(statement))
+
+    @staticmethod
+    def _ensure_uuid(value: UUID | str) -> UUID:
+        if isinstance(value, UUID):
+            return value
+        return UUID(str(value))
+
+    @staticmethod
+    def _line_string(coordinates: list[tuple[float, float]]) -> WKTElement:
+        if len(coordinates) < 2:
+            raise ValueError("Track geometry requires at least two coordinate pairs")
+        parts = [f"{lon} {lat}" for lat, lon in coordinates]
+        return WKTElement(f"LINESTRING({', '.join(parts)})", srid=4326)
+
+    def create(self, data: TrackCreate) -> Track:
+        coordinates = list(data.coordinates)
+        geometry = self._line_string(coordinates)
+        track = Track(
+            name=data.name,
+            start_station_id=self._ensure_uuid(data.start_station_id),
+            end_station_id=self._ensure_uuid(data.end_station_id),
+            length_meters=data.length_meters,
+            max_speed_kph=data.max_speed_kph,
+            is_bidirectional=data.is_bidirectional,
+            status=data.status,
+            track_geometry=geometry,
+        )
+        self.session.add(track)
+        return track