CLI commands

Command	Description
npx @thomasfarineau/anvil create <name>	Scaffold a new project in <name>/ (interactive)
npx @thomasfarineau/anvil create <name> -t X	Scaffold with template X, no prompts
npx anvil init	Initialize anvil in the current folder
npx anvil dev	Start the launcher in development mode
npx anvil build	Compile the launcher for distribution
npx anvil update	Update the Rust backend and api.js to the latest version
npx anvil icons	Force-regenerate app icons from the configured logo