feat: move the terminal fully into the ssh-terminal plugin (B9)

plugins/ai/tests/backend/command-history-service.test.ts

@@ -0,0 +1,39 @@
+import { afterEach, describe, expect, it, vi } from "vitest";
+import {
+  listCommandHistory,
+  setPluginServices,
+} from "../../src/backend/services.js";
+
+afterEach(() => setPluginServices(null));
+
+describe("listCommandHistory", () => {
+  it("reads the user's history through terminal.history", async () => {
+    const list = vi.fn(async () => [
+      { command: "ls", executedAt: "2026-01-01T00:00:00.000Z" },
+    ]);
+    const get = vi.fn(() => ({ list }));
+    setPluginServices({ get, provide: vi.fn() } as never);
+
+    const history = await listCommandHistory("user-1", 4, 25);
+
+    expect(get).toHaveBeenCalledWith("terminal.history", { userId: "user-1" });
+    expect(list).toHaveBeenCalledWith(4, 25);
+    expect(history).toEqual([
+      { command: "ls", executedAt: "2026-01-01T00:00:00.000Z" },
+    ]);
+  });
+
+  it("answers null while the terminal is off or refuses the user", async () => {
+    expect(await listCommandHistory("user-1", 4, 25)).toBeNull();
+
+    setPluginServices({
+      get: () => ({
+        list: async () => {
+          throw new Error("unavailable");
+        },
+      }),
+      provide: vi.fn(),
+    } as never);
+    expect(await listCommandHistory("user-1", 4, 25)).toBeNull();
+  });
+});