fix: add missing collectDirectorySeedFiles definition

tools/src/hwlab-caserun-lib.ts

@@ -942,6 +942,26 @@ function agentTraceIdentityArtifact(run: PreparedCaseRun, agent: AgentRunStage)
   });
 }
 
+async function collectDirectorySeedFiles(sourceRel: string, targetRel: string, files: AgentWorkspaceFile[]): Promise<void> {
+  const sourceDir = path.join(SOURCE_ROOT, sourceRel);
+  const stack: string[] = [""];
+  while (stack.length > 0) {
+    const sub = stack.pop()!;
+    const dirPath = path.join(sourceDir, sub);
+    const entries = await readdir(dirPath, { withFileTypes: true });
+    for (const dirent of entries) {
+      const relPath = sub ? path.join(sub, dirent.name) : dirent.name;
+      if (dirent.isDirectory()) {
+        stack.push(relPath);
+      } else if (dirent.isFile()) {
+        const filePath = path.join(dirPath, dirent.name);
+        const targetPath = path.join(targetRel, relPath).replace(/\\/g, "/");
+        files.push({ path: targetPath, content: await readFile(filePath, "utf8"), encoding: "utf8" });
+      }
+    }
+  }
+}
+
 async function agentWorkspaceFilesForRun(run: PreparedCaseRun): Promise<AgentWorkspaceFile[]> {
   const content = await readFile(run.specPath, "utf8");
   const files: AgentWorkspaceFile[] = [{ path: ".hwlab/hwpod-spec.yaml", content, encoding: "utf8" }];