init: add source code from src.zip

src/components/wizard/useWizard.ts

@@ -0,0 +1,13 @@
+import { useContext } from 'react'
+import type { WizardContextValue } from './types.js'
+import { WizardContext } from './WizardProvider.js'
+
+export function useWizard<
+  T extends Record<string, unknown> = Record<string, unknown>,
+>(): WizardContextValue<T> {
+  const context = useContext(WizardContext) as WizardContextValue<T> | null
+  if (!context) {
+    throw new Error('useWizard must be used within a WizardProvider')
+  }
+  return context
+}