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What is the purpose of Micronaut's BeanContext and ApplicationContext?

BeanContext is Micronaut's core IoC container: it holds bean definitions, resolves dependencies, manages scopes, and lets you look up beans programmatically via getBean(). It's usable on its own for lightweight, non-HTTP scenarios like CLI tools.

ApplicationContext extends BeanContext and adds everything needed for a full application: environment and property resolution (application.yml, environment variables, command-line args), profile/environment detection (dev, test, prod), and integration with configuration sources like Consul or AWS Parameter Store.

ApplicationContext ctx = ApplicationContext.run();
OrderService service = ctx.getBean(OrderService.class);

In practice, almost every real Micronaut application uses ApplicationContext, since even simple services need externalized configuration; BeanContext mainly shows up in embedded or highly constrained use cases where configuration resolution isn't needed at all.

Which of the two adds environment and property resolution on top of the base IoC container?
BeanContext on its own is most useful for:

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