Sets up the basic structure for integrating with the Strava API.
This includes:
- Adds .devcontainer configuration for consistent development environment.
- Configures eslint and prettier for code quality and formatting.
- Implements secure credential management using Infisical.
- Creates basic Strava client and request classes with authentication handling.
- Sets up basic express routes to return data from the Strava API
This commit lays the foundation for future enhancements such as
fetching and displaying activity data.
