empty diff folders created when there is no baselines

[alcpereira]

Environment (please complete the following information):

• Node.js version: 22.14.0
• NPM version: yarn 4.4.0
• Browser name and version: Chrome 117
• Platform name and version: Linux CI
• WebdriverIO version: 9.12.2
• @wdio/visual-service version: 6.4.0

Config of WebdriverIO + @wdio/visual-service

const imageServiceOpts: VisualServiceOptions = {
  autoSaveBaseline: false,
  baselineFolder: path.join("storybook-visual-tests", "storybookTestBaseline"),
  screenshotPath: "storybook-visual-tests",
  waitForFontsLoaded: true,
  disableCSSAnimation: true,
  disableBlinkingCursor: true,
  clearRuntimeFolder: true,
  ignoreAntialiasing: true,
  storybook: {
    url: baseUrlDomain,
    additionalSearchParams: new URLSearchParams({ globals: `cssVariables:${THEMES[themeId]}` }),
    getStoriesBaselinePath: (category, component) => `${category}/${component}/${themeId}`,
    numShards: 32,
    skipStories: createRegex(),
  },
};

const config: WebdriverIO.Config = {
  runner: "local",
  specs: [],
  exclude: [],
  maxInstances: 20,
  capabilities: [],
  waitforTimeout: 10_000,
  logLevel: "error",
  services: [["visual", imageServiceOpts]],
  framework: "mocha",
  reporters: ["spec"],
  hostname: "localhost",
  port: 4444,
  path: "/wd/hub",
};

Describe the bug
When there is no baselines (new project, new folder structure -change in getStoriesBaselinePath()-),

To Reproduce

• Use a project with various visual tests in Storybook mode with the default getStoriesBaselinePath or use a custom one.
• Remove the baselines folders
• Run the tests
• Check the diff folder

Expected behavior
When the test pass, there should be no folders created in the diff. Only if there is failed test.

Additional context
The issue seems to be in getAndCreatePath that is called too soon.