Refactor terminal state store tests for improved clarity and performance

- Replace custom memory storage implementation with a simplified localStorage stub.
- Enhance test setup by using vi.stubGlobal for localStorage, ensuring a cleaner state before each test.
- Maintain existing test functionality while streamlining the code structure.

Author: BunsDev

apps/web/src/terminalStateStore.test.ts

@@ -1,33 +1,21 @@
 import { ThreadId } from "@okcode/contracts";
-import { beforeEach, describe, expect, it } from "vitest";
-import { createJSONStorage } from "zustand/middleware";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 
 import { selectThreadTerminalState, useTerminalStateStore } from "./terminalStateStore";
 
 const THREAD_ID = ThreadId.makeUnsafe("thread-1");
 
-const memoryStorage = (() => {
-  const store = new Map<string, string>();
-  return {
-    getItem: (key: string) => store.get(key) ?? null,
-    setItem: (key: string, value: string) => {
-      store.set(key, value);
-    },
-    removeItem: (key: string) => {
-      store.delete(key);
-    },
-    clear: () => {
-      store.clear();
-    },
-  };
-})();
-
 describe("terminalStateStore actions", () => {
   beforeEach(() => {
-    useTerminalStateStore.persist.setOptions({
-      storage: createJSONStorage(() => memoryStorage),
-    });
-    memoryStorage.clear();
+    const storage = {
+      getItem: () => null,
+      setItem: () => {},
+      removeItem: () => {},
+      clear: () => {},
+    };
+
+    vi.stubGlobal("localStorage", storage);
+    localStorage.clear();
     useTerminalStateStore.setState({ terminalStateByThreadId: {} });
   });