Function createWmService

createWmService(
opts: { hooks: WmHostHooks; strategy?: LayoutStrategy },
): WmService
Create a WM service. If strategy is omitted, a no-op identity strategy is used (returns windows unchanged) — consumers can ship a working shell before implementing a concrete layout.

The strategy is closure-scoped. Consumers invoke strategy.arrange(windows, containerRect) from their own event handlers using state snapshots. This factory does NOT call arrange() internally; only consumers know when a re-layout is appropriate.
Parameters
- opts: { hooks: WmHostHooks; strategy?: LayoutStrategy }
Returns WmService
Example
```
import { createWmService } from '@kehto/wm';
import { masterStackStrategy } from './strategies/master-stack';

const wm = createWmService({
  hooks: { selectLayout(){}, onWindowCreated(){}, onWindowDestroyed(){}, onWindowMoved(){} },
  strategy: masterStackStrategy, // omit to use no-op default
});
```
- Defined in index.ts:109