fix: complete form factory functionality, docs

docs/framework/react/reference/createFormFactory.md

@@ -0,0 +1,36 @@
+---
+id: createFormFactory
+title: createFormFactory
+---
+
+### `createFormFactory`
+
+```tsx
+export function createFormFactory<TFormData>(
+  opts?: FormOptions<TFormData>,
+): FormFactory<TFormData>
+```
+
+A function that creates a new `FormFactory<TFormData>` instance.
+
+- `opts`
+  - Optional form options and a `listen` function to be called with the form state.
+
+### `FormFactory<TFormData>`
+
+A type representing a form factory. Form factories provide a type-safe way to interact with the form API as opposed to using the globally exported form utilities.
+
+```tsx
+export type FormFactory<TFormData> = {
+  useForm: (opts?: FormOptions<TFormData>) => FormApi<TFormData>
+  useField: UseField<TFormData>
+  Field: FieldComponent<TFormData>
+}
+```
+
+- `useForm`
+  - A custom hook that creates and returns a new instance of the `FormApi<TFormData>` class.
+- `useField`
+  - A custom hook that returns an instance of the `FieldApi<TFormData>` class.
+- `Field`
+  - A form field component.