Refactor code structure for improved readability and maintainability

reference/code-index-mcp-master/Dockerfile

@@ -0,0 +1,24 @@
+# Use lightweight Python image
+FROM python:3.11-slim
+
+# Install git (for code analysis)
+RUN apt-get update && apt-get install -y git && rm -rf /var/lib/apt/lists/*
+
+# Set working directory
+WORKDIR /app
+
+# Copy dependency list and install dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy code
+COPY . .
+
+# Set Python path
+ENV PYTHONPATH="${PYTHONPATH}:/app:/app/src"
+
+# No default project directory mount point needed, user will explicitly set project path
+
+# Run MCP tool
+# MCP server uses stdio mode by default
+ENTRYPOINT ["python", "-m", "code_index_mcp.server"]