fix tests

tests/composite.test.ts

@@ -1,5 +1,6 @@
 import { afterEach, expect, test } from "bun:test";
 import { chmod, mkdir, mkdtemp, readFile, rm, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { Effect, PubSub, Schema, Stream } from "effect";
 import { Agent, Model, Provider } from "@opencode/plugin";
@@ -27,7 +28,7 @@ interface LocationInstance {
     admit: () => Effect.Effect<void[]>;
 }
 const scenario = async () => {
-    const directory = await mkdtemp("/tmp/opencode/composite-");
+    const directory = await mkdtemp(join(tmpdir(), "composite-"));
     directories.push(directory);
     const root = join(directory, "root");
     const destination = join(directory, "child");