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.

infra/postgres/Dockerfile

@@ -0,0 +1,15 @@
+# syntax=docker/dockerfile:1
+FROM postgis/postgis:16-3.4
+
+ARG POSTGRES_USER=railgame
+ARG POSTGRES_PASSWORD=railgame
+ARG POSTGRES_DB=railgame_dev
+
+ENV POSTGRES_USER=${POSTGRES_USER} \
+    POSTGRES_PASSWORD=${POSTGRES_PASSWORD} \
+    POSTGRES_DB=${POSTGRES_DB}
+
+# Bootstrap extensions and companion databases on first run.
+COPY initdb/ /docker-entrypoint-initdb.d/
+
+EXPOSE 5432