refactor(v4.0.0-alpha): beginning of a new era

apps/client/src/stores/openai.ts

@@ -0,0 +1,17 @@
+import { create } from "zustand";
+import { persist } from "zustand/middleware";
+
+interface OpenAIStore {
+  apiKey: string | null;
+  setApiKey: (apiKey: string | null) => void;
+}
+
+export const useOpenAiStore = create<OpenAIStore>()(
+  persist(
+    (set) => ({
+      apiKey: null,
+      setApiKey: (apiKey) => set({ apiKey }),
+    }),
+    { name: "openai" },
+  ),
+);