Fix Windows path compatibility for npx check-ai

[tscburak]

npx check-ai was throwing the following error on Windows due to how absolute paths were being handled by the Node.js ESM loader:

Error [ERR_UNSUPPORTED_ESM_URL_SCHEME]: Only URLs with a scheme in: file, data, and node are supported by the default ESM loader. On Windows, absolute paths must be valid file:// URLs. Received protocol 'c:'

This happens because Windows absolute paths (e.g. C:\...) are not valid ESM URLs. The Node.js ESM loader expects paths to be provided as file:// URLs.

To fix this, the Node.js native pathToFileURL utility is used to convert filesystem paths into OS-safe file:// URLs before loading them.

[tscburak]

@f Windows users are waiting for the ‘merged’ news 😅

[f]

Deployment fails. Can you fix the CI issue and resend a PR?

[tscburak]

@f I checked the CI errors. I ran Prettier and ESLint and made sure there are no warnings. See #6