Update

[michalmar]

This pull request includes several configuration and documentation updates across the development environment, backend services, and deployment instructions. The main changes improve setup reliability, clarify environment variable formatting, and update documentation for better usability.

Development Environment and Tooling:

• Updated .devcontainer/devcontainer.json to enhance the post-create command by removing the --yes flag from the uv installer, adding a check for the uvx version, and ensuring port setup runs as before.
• Added a new GitHub-MCP HTTP endpoint configuration to .vscode/mcp.json for easier integration with GitHub Copilot MCP.

Backend Service Configuration:

• Quoted the APP_NAME values in .env.example files for accessory-service, activity-service, and pet-service to prevent parsing issues with names containing spaces. [1] [2] [3]

Documentation Updates:

• Updated deployment instructions in solutions/challenge-08/README.md to use device code authentication with azd auth login --use-device-code for improved login experience.
• Removed redundant application testing instructions from challenges/challenge-08/README.md to streamline the documentation.