Add basic Docker configuration

[cybercoffeedev]

This PR introduces a basic containerization support with two profiles: dev and prod

Dev: Heavier image that uses the full SDK for both build and runtime. This is ideal if you plan to use the Git-based update method

Prod: Lightweight image that uses the ASP.NET runtime. This is ideal for production environments using the manifest update method

Before running the container, ensure you have a .env file in the root directory with the following variables defined:

SS14_PORT
WATCHDOG_PORT
WATCHDOG_URL

to run the container execute the following command:

docker compose --profile <dev|prod> up