Function createBatchingHttpBridge

createBatchingHttpBridge(options: BatchingHttpBridgeOptions): AsyncPlugin
createBatchingHttpBridge — coalescing fetch-based transport plugin.

Same per-dispatch call shape and backend options as createHttpBridge (CSRF, retry, timeout, session-expiry are all reused via the same postCommand/httpClient path), but every command dispatched within the batching window is queued and sent as ONE POST:

{ commands: [{ id, command, target, payload }, ...] }

matched back against:

{ results: [{ id, ok, state, error }, ...] }

Each queued command's own dispatch promise resolves independently — a caller dispatches exactly as it would against createHttpBridge; the coalescing is invisible to the call site.
Parameters
- options: BatchingHttpBridgeOptions
Returns AsyncPlugin
Example
```
const bus = createAsyncCommandBus()
bus.use(createBatchingHttpBridge({ endpoint: '/api/vc/batch', csrf: true }))
// two dispatches issued in the same tick → one HTTP round trip:
bus.dispatch('formSet', { field: 'email' }, { value: 'a@b.com' })
bus.dispatch('cartAdd', product, { quantity: 2 })
```
- Defined in transports.ts:286