refactor: add hook guards and test helpers

src/test-helpers/workspace.ts

@@ -0,0 +1,17 @@
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+
+export async function makeTempWorkspace(prefix = "clawdbot-workspace-"): Promise<string> {
+  return fs.mkdtemp(path.join(os.tmpdir(), prefix));
+}
+
+export async function writeWorkspaceFile(params: {
+  dir: string;
+  name: string;
+  content: string;
+}): Promise<string> {
+  const filePath = path.join(params.dir, params.name);
+  await fs.writeFile(filePath, params.content, "utf-8");
+  return filePath;
+}