Add devcontainer files

[Kwstubbs]

Add devcontainer

[Copilot]

Pull Request Overview

This PR adds development container configuration files to enable standardized development environments using VS Code devcontainers. The setup includes automated Python virtual environment creation, dependency installation, and environment configuration.

• Adds complete devcontainer configuration with Docker, Python 3.11, and development tools
• Creates automated setup script for Python virtual environment and environment variables
• Provides template for required environment variables including GitHub Copilot token

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
.devcontainer/devcontainer.json	Main devcontainer configuration with Python 3.11, Docker-in-Docker, and VS Code extensions
.devcontainer/Dockerfile	Base Ubuntu 24.04 image with build tools for the development environment
.devcontainer/post-create.sh	Automated setup script for Python environment, dependencies, and configuration files

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