feat: add project-aware agent workspace

src/shared/cache/resource-cache.test.ts

@@ -0,0 +1,30 @@
+import { describe, expect, it, vi } from "vitest";
+import { ResourceCache } from "./resource-cache";
+
+describe("login-owned resource cache", () => {
+  it("shares in-flight work, retains fresh values and retries after expiry", async () => {
+    const clock = vi.spyOn(Date, "now").mockReturnValue(100);
+    const cache = new ResourceCache();
+    const fetch = vi.fn(async () => ["project-a"]);
+    const first = cache.load("projects", fetch, 60_000);
+    expect(cache.load("projects", fetch, 60_000)).toBe(first);
+    await first;
+    for (let i = 0; i < 10; i++) await cache.load("projects", fetch, 60_000);
+    expect(fetch).toHaveBeenCalledTimes(1);
+    clock.mockReturnValue(60_101);
+    await cache.load("projects", fetch, 60_000);
+    expect(fetch).toHaveBeenCalledTimes(2);
+    clock.mockRestore();
+  });
+  it("retains the last content after refresh failure and briefly caches failures", async () => {
+    const cache = new ResourceCache();
+    cache.set("suggestions", ["原有问题"], 0);
+    const fail = vi.fn(async () => { throw new Error("offline"); });
+    await expect(cache.load("suggestions", fail, 60_000, { errorTtl: 30_000 })).rejects.toThrow("offline");
+    await expect(cache.load("suggestions", fail, 60_000)).rejects.toThrow("offline");
+    expect(cache.peek<string[]>("suggestions")?.value).toEqual(["原有问题"]);
+    expect(fail).toHaveBeenCalledTimes(1);
+    cache.clear();
+    expect(cache.peek("suggestions")).toBeUndefined();
+  });
+});