test: make CI fixture invocations portable

test/cli.test.ts

@@ -1438,6 +1438,7 @@ describe("mcp http daemon", () => {
         ...process.env,
         INDEX_PATH: daemonDbPath,
         QMD_CONFIG_DIR: daemonConfigDir,
+        PWD: fixturesDir,
         ...options.env,
       },
       stdio: ["ignore", "pipe", "pipe"],

test/esm-ambiguous-module.test.ts

@@ -9,7 +9,7 @@ const repoRoot = resolve(dirname(fileURLToPath(import.meta.url)), "..");
 
 describe("Node ESM entrypoints", () => {
   test("CLI --index path normalizes via setIndexName/setConfigIndexName under Node 22+", () => {
-    execFileSync("bun", ["run", "build"], {
+    execFileSync("npm", ["run", "build"], {
       cwd: repoRoot,
       encoding: "utf-8",
       stdio: "pipe",