enableMediaQuery

Turns on Compose's media-query integration. Must run before any content composes.

Google's own docs show this in an Android Application.onCreate, which is not a place a multiplatform module has. Call it from each platform's entry point instead — MainActivity, UIViewController, main(), the wasm onWasmReady — or from a shared initDesignSystem() if the consumer already has one.

ponytail: a plain function rather than an expect/actual pair. The flag is common API and the assignment is identical on every target; the only platform-specific part is where it gets called, which is the consumer's business and not something an actual can encode.