feat: convert file manager into a plugin

src/ui/tests/lib/file-content-request-cache.test.ts

@@ -1,49 +0,0 @@
-import { describe, expect, it, vi } from "vitest";
-import {
-  getCachedFileContent,
-  invalidateCachedFileContent,
-  shouldPrefetchFileContent,
-} from "../../lib/file-content-request-cache";
-
-describe("file content request cache", () => {
-  it("coalesces reads and reloads after invalidation", async () => {
-    const loader = vi.fn(async () => ({ content: "hello", path: "/note" }));
-
-    await Promise.all([
-      getCachedFileContent("session", "/note", loader),
-      getCachedFileContent("session", "/note", loader),
-    ]);
-    expect(loader).toHaveBeenCalledOnce();
-
-    invalidateCachedFileContent("session", "/note");
-    await getCachedFileContent("session", "/note", loader);
-    expect(loader).toHaveBeenCalledTimes(2);
-  });
-
-  it("only prefetches known small files on an unconstrained network", () => {
-    expect(
-      shouldPrefetchFileContent(
-        { name: "note", path: "/note", type: "file", size: 512 * 1024 },
-        512 * 1024,
-      ),
-    ).toBe(true);
-    expect(
-      shouldPrefetchFileContent(
-        { name: "large", path: "/large", type: "file", size: 512 * 1024 + 1 },
-        512 * 1024,
-      ),
-    ).toBe(false);
-    expect(
-      shouldPrefetchFileContent(
-        { name: "unknown", path: "/unknown", type: "file" },
-        512 * 1024,
-      ),
-    ).toBe(false);
-    expect(
-      shouldPrefetchFileContent(
-        { name: "note", path: "/note", type: "file", size: 100 },
-        0,
-      ),
-    ).toBe(false);
-  });
-});

src/ui/tests/lib/useConnectionRetry.test.ts

@@ -1,30 +0,0 @@
-import { renderHook, waitFor } from "@testing-library/react";
-import { describe, expect, it, vi } from "vitest";
-import {
-  computeReconnectDelay,
-  useConnectionRetry,
-} from "../../lib/useConnectionRetry.ts";
-
-describe("connection retry delay", () => {
-  it("uses exponential backoff with bounded jitter", () => {
-    expect(computeReconnectDelay(1, 2000, 8000, () => 0.5)).toBe(2000);
-    expect(computeReconnectDelay(2, 2000, 8000, () => 0)).toBe(3600);
-    expect(computeReconnectDelay(2, 2000, 8000, () => 1)).toBe(4400);
-  });
-
-  it("never exceeds the configured cap", () => {
-    expect(computeReconnectDelay(8, 2000, 8000, () => 1)).toBe(8000);
-  });
-});
-
-describe("useConnectionRetry", () => {
-  it("turns a rejected async connection into a failed state", async () => {
-    const connect = vi.fn().mockRejectedValue(new Error("offline"));
-    const { result } = renderHook(() =>
-      useConnectionRetry({ connect, enabled: false }),
-    );
-
-    await waitFor(() => expect(result.current.status).toBe("error"));
-    expect(connect).toHaveBeenCalledOnce();
-  });
-});