fix: sync reliability for large libraries (900+ books) - #343

Unexpected token. A constructor, method, accessor, or property was expected.

Unexpected keyword or identifier.

Type parameter declaration expected.

Declaration or statement expected.

Expression expected.

Expression expected.

',' expected.

')' expected.

',' expected.

Type parameter declaration expected.

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-node@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/