feat: add example

examples/demo-frontend/src/domains/auth/hooks/use-auth.hook.ts

@@ -0,0 +1,19 @@
+'use client'
+
+import { useContext } from 'react'
+
+import { AuthContext } from '../auth.context'
+import type { AuthContextValue } from '../types/auth-context.type'
+
+/**
+ * Возвращает application-scoped auth API текущего пользователя.
+ */
+export const useAuth = (): AuthContextValue => {
+  const context = useContext(AuthContext)
+
+  if (context === null) {
+    throw new Error('useAuth must be used inside AuthProvider')
+  }
+
+  return context
+}