This commit: Füge Docusaurus-Konfiguration für Schriftarten, Farbschemata und benutzerdefinierte CSS-Variablen hinzu; implementiere GitHub Actions-Workflow zum Synchronisieren von PRs mit privatem Repository.

Changes – 2025-08-10: Add Docusaurus config for styles and GitHub Actions (4e97d82)

[Impact: Low] No reader-visible documentation changes.

Why it matters: This indicates that there were no significant updates to the documentation that would affect readers' experience or understanding.