Function createInputPlugin

createInputPlugin<A extends string = string, G extends string = "input">(
    options?: InputPluginOptions<A, G>,
): Plugin<
    WorldConfigFrom<{}, {}, InputResourceTypes<A>>,
    EmptyConfig,
    "input-state",
    G,
>
Create an input plugin for ECSpresso.

This plugin provides:
- Frame-accurate keyboard state (isDown, justPressed, justReleased)
- Pointer position/delta and button state (mouse + touch via PointerEvent)
- Named action mapping with runtime remapping
- Automatic listener cleanup on detach
Type Parameters
- A extends string = string
- G extends string = "input"
Parameters
- Optionaloptions: InputPluginOptions<A, G>
Returns Plugin<
    WorldConfigFrom<{}, {}, InputResourceTypes<A>>,
    EmptyConfig,
    "input-state",
    G,
>
Example
```
const ecs = ECSpresso.create()
  .withPlugin(createInputPlugin({
    actions: {
      jump: { keys: [' ', 'ArrowUp'] },
      shoot: { keys: ['z'], buttons: [0] },
    },
  }))
  .build();

// In a system:
const input = ecs.getResource('inputState');
if (input.actions.justActivated('jump')) { ... }
if (input.keyboard.isDown('ArrowRight')) { ... }
```
- Defined in plugins/input.ts:363