Feature request: Make getting started UX better

[riywo]

Problems

Currently, the initial setup isn't user friendly. The user needs to create a directory and setup environment variable by hand. README doesn't cover Windows setup.

Values

• A new user can setup Aethr by one interactive command
  • Only the prerequisite is Node.js installation but eventually we can provide a script installer

Solution

• Create create-aethr package
  • npm init aethr@latest is the initialization command
• Use @inquirer/prompts to collect inputs from the user interactively
  • Support non-interactive setup as well (nice-to-have at the beginning)
• Setup a workspace directory, .env, aethr.config.mjs and a demo scenario
• Then, the user can simply get started by npx aethr run demo.md