fix(doctor): align qmd probe cwd with runtime

src/commands/doctor-memory-search.test.ts

@@ -6,6 +6,7 @@ import type { checkQmdBinaryAvailability as checkQmdBinaryAvailabilityFn } from
 const note = vi.hoisted(() => vi.fn());
 const resolveDefaultAgentId = vi.hoisted(() => vi.fn(() => "agent-default"));
 const resolveAgentDir = vi.hoisted(() => vi.fn(() => "/tmp/agent-default"));
+const resolveAgentWorkspaceDir = vi.hoisted(() => vi.fn(() => "/tmp/agent-default/workspace"));
 const resolveMemorySearchConfig = vi.hoisted(() => vi.fn());
 const resolveApiKeyForProvider = vi.hoisted(() => vi.fn());
 const resolveActiveMemoryBackendConfig = vi.hoisted(() => vi.fn());
@@ -21,6 +22,7 @@ vi.mock("../terminal/note.js", () => ({
 vi.mock("../agents/agent-scope.js", () => ({
   resolveDefaultAgentId,
   resolveAgentDir,
+  resolveAgentWorkspaceDir,
 }));
 
 vi.mock("../agents/memory-search.js", () => ({
@@ -62,6 +64,7 @@ describe("noteMemorySearchHealth", () => {
     note.mockClear();
     resolveDefaultAgentId.mockClear();
     resolveAgentDir.mockClear();
+    resolveAgentWorkspaceDir.mockClear();
     resolveMemorySearchConfig.mockReset();
     resolveApiKeyForProvider.mockReset();
     resolveApiKeyForProvider.mockRejectedValue(new Error("missing key"));
@@ -141,6 +144,11 @@ describe("noteMemorySearchHealth", () => {
     await noteMemorySearchHealth(cfg, {});
 
     expect(note).not.toHaveBeenCalled();
+    expect(checkQmdBinaryAvailability).toHaveBeenCalledWith({
+      command: "qmd",
+      env: process.env,
+      cwd: "/tmp/agent-default/workspace",
+    });
   });
 
   it("warns when QMD backend is active but the qmd binary is unavailable", async () => {

src/commands/doctor-memory-search.ts

@@ -1,5 +1,9 @@
 import fsSync from "node:fs";
-import { resolveAgentDir, resolveDefaultAgentId } from "../agents/agent-scope.js";
+import {
+  resolveAgentDir,
+  resolveAgentWorkspaceDir,
+  resolveDefaultAgentId,
+} from "../agents/agent-scope.js";
 import { resolveMemorySearchConfig } from "../agents/memory-search.js";
 import { resolveApiKeyForProvider } from "../agents/model-auth.js";
 import { formatCliCommand } from "../cli/command-format.js";
@@ -58,6 +62,7 @@ export async function noteMemorySearchHealth(
     const qmdCheck = await checkQmdBinaryAvailability({
       command: backendConfig.qmd?.command ?? "qmd",
       env: process.env,
+      cwd: resolveAgentWorkspaceDir(cfg, agentId),
     });
     if (!qmdCheck.available) {
       note(