✅ test(tests): avoid hardcoded missing path

tests/scripts/test_vendor_playbook.bats

@@ -214,7 +214,10 @@ teardown() {
 @test "错误处理 - 目标目录不存在时报错" {
     cd "$TARGET_DIR"
 
-    run sh "$SCRIPT_PATH" /nonexistent/path tsl
+    missing_dir="$TEST_DIR/missing-project"
+    rm -rf "$missing_dir"
+
+    run sh "$SCRIPT_PATH" "$missing_dir" tsl
 
     [ "$status" -ne 0 ]
 }