feat (memory): Implement new (opt-in) QMD memory backend

src/agents/tools/memory-tool.citations.test.ts

@@ -0,0 +1,65 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const stubManager = {
+  search: vi.fn(async () => [
+    {
+      path: "MEMORY.md",
+      startLine: 5,
+      endLine: 7,
+      score: 0.9,
+      snippet: "@@ -5,3 @@\nAssistant: noted",
+      source: "memory" as const,
+    },
+  ]),
+  readFile: vi.fn(),
+  status: () => ({
+    backend: "builtin" as const,
+    files: 1,
+    chunks: 1,
+    dirty: false,
+    workspaceDir: "/workspace",
+    dbPath: "/workspace/.memory/index.sqlite",
+    provider: "builtin",
+    model: "builtin",
+    requestedProvider: "builtin",
+    sources: ["memory" as const],
+    sourceCounts: [{ source: "memory" as const, files: 1, chunks: 1 }],
+  }),
+  sync: vi.fn(),
+  probeVectorAvailability: vi.fn(async () => true),
+  close: vi.fn(),
+};
+
+vi.mock("../../memory/index.js", () => {
+  return {
+    getMemorySearchManager: async () => ({ manager: stubManager }),
+  };
+});
+
+import { createMemorySearchTool } from "./memory-tool.js";
+
+beforeEach(() => {
+  vi.clearAllMocks();
+});
+
+describe("memory search citations", () => {
+  it("appends source information when citations are enabled", async () => {
+    const cfg = { memory: { citations: "on" }, agents: { list: [{ id: "main", default: true }] } };
+    const tool = createMemorySearchTool({ config: cfg });
+    if (!tool) throw new Error("tool missing");
+    const result = await tool.execute("call_citations_on", { query: "notes" });
+    const details = result.details as { results: Array<{ snippet: string; citation?: string }> };
+    expect(details.results[0]?.snippet).toMatch(/Source: MEMORY.md#L5-L7/);
+    expect(details.results[0]?.citation).toBe("MEMORY.md#L5-L7");
+  });
+
+  it("leaves snippet untouched when citations are off", async () => {
+    const cfg = { memory: { citations: "off" }, agents: { list: [{ id: "main", default: true }] } };
+    const tool = createMemorySearchTool({ config: cfg });
+    if (!tool) throw new Error("tool missing");
+    const result = await tool.execute("call_citations_off", { query: "notes" });
+    const details = result.details as { results: Array<{ snippet: string; citation?: string }> };
+    expect(details.results[0]?.snippet).not.toMatch(/Source:/);
+    expect(details.results[0]?.citation).toBeUndefined();
+  });
+});