Add initial project structure with Docker, CI, and FastAPI setup

- Create Dockerfile and docker-compose.yml for containerization
- Add CI configuration for linting and testing
- Implement FastAPI application with health check routes
- Set up database schema using DuckDB
- Include environment configuration and secrets management
- Add README with project objectives and key features
- Implement logging setup and configuration
- Create initial tests for health route
- Add HTML templates for web interface

Dockerfile

@@ -0,0 +1,18 @@
+FROM python:3.12-slim AS base
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+WORKDIR /app
+
+RUN pip install --no-cache-dir --upgrade pip
+
+COPY pyproject.toml README.md /app/
+COPY src /app/src
+COPY web /app/web
+
+RUN pip install --no-cache-dir .
+
+EXPOSE 8000
+
+CMD ["python", "-m", "arbitrade.main"]