Add Docker deployment support with registry integration

- Update Dockerfile to use pyproject.toml instead of requirements.txt
- Add support for Docker Hub image pulling in compose files
- Add comprehensive deployment documentation with multiple methods
- Create CLAUDE.md with development and architecture guide
- Add .dockerignore for optimized build context
- Update .env.example with Docker configuration variables
- Configure 24-hour monitoring interval by default

Changes:
- Dockerfile: Install from pyproject.toml, use main.py entry point
- docker-compose.yml: Add image option for registry deployment
- docker-compose.prod.yml: Add image option for VPS deployment
- README.md: Add Docker Hub push/pull workflows and examples
- CLAUDE.md: Comprehensive guide for AI assistants and developers
- .dockerignore: Exclude unnecessary files from Docker builds
- .env.example: Add DOCKER_USERNAME and IMAGE_TAG variables

Dockerfile

@@ -7,6 +7,7 @@ WORKDIR /app
 # Set environment variables
 ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1
+ENV PYTHONPATH=/app
 
 # Install system dependencies
 RUN apt-get update && apt-get install -y --no-install-recommends \
@@ -16,14 +17,17 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 # Install uv for faster package installation
 RUN pip install --no-cache-dir uv
 
-# Copy requirements first for better caching
-COPY requirements.txt .
+# Copy only dependency files for better layer caching
+COPY pyproject.toml .
 
-# Install Python dependencies
-RUN uv pip install --system --no-cache -r requirements.txt
+# Install Python dependencies from pyproject.toml
+RUN uv pip install --system --no-cache -e .
 
-# Copy application code
-COPY server.py .
+# Copy application source code
+COPY src/ ./src/
+
+# Create data directory for schema cache
+RUN mkdir -p /app/data/schemas
 
 # Expose the port
 EXPOSE 8000
@@ -32,5 +36,5 @@ EXPOSE 8000
 HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
     CMD curl -f http://localhost:8000/health || exit 1
 
-# Run the server
-CMD ["python", "server.py"]
+# Run the server using the installed package entry point
+CMD ["python", "-m", "geoguessr_mcp.main"]