feat: finish the homepage plugin, move service links and canvas out of core (B19)

plugins/homepage/tests/backend/services.test.ts

@@ -0,0 +1,40 @@
+import { afterEach, beforeEach, describe, expect, it } from "vitest";
+import { startServer, type TestServer } from "./helpers";
+
+let server: TestServer;
+
+beforeEach(async () => {
+  server = await startServer();
+});
+
+afterEach(async () => {
+  await server.close();
+});
+
+describe("homepage.items service", () => {
+  it("lists the acting user's items", async () => {
+    await server.request("POST", "/items", {
+      body: { typeId: "clock", title: "My Clock" },
+    });
+    await server.request("POST", "/items", {
+      body: { typeId: "notes" },
+      user: "user-2",
+    });
+
+    server.mock.setActor("user-1");
+    const service = server.mock.services.get("homepage.items") as
+      | { list: () => Promise<Array<{ typeId: string; title: string | null }>> }
+      | undefined;
+    const items = await service!.list();
+    expect(items).toEqual([
+      { id: expect.any(Number), typeId: "clock", title: "My Clock" },
+    ]);
+  });
+
+  it("returns an empty list with no acting user", async () => {
+    server.mock.setActor(undefined);
+    const service = server.mock.services.get("homepage.items") as
+      { list: () => Promise<unknown[]> } | undefined;
+    expect(await service!.list()).toEqual([]);
+  });
+});