- Replace `electron-store` with OS-level encrypted storage for secure token, userId, and language management in `LocalSystem` and `keyManager`.
- Add `init-user` IPC handler to initialize user data and manage encryption keys.
- Update login process to handle encrypted storage saving with fallback for macOS issues.
- Add offline warning component to `login/page.tsx` to handle first-time sync requirements.
- Remove `electron-store` and associated dependencies from `package.json` and `package-lock.json`.
- Implement `remove-inline-scripts.js` to externalize Next.js inline scripts, enhancing CSP compliance.
- Add models for `Book`, `Character`, `Story`, `Editor`, `System`, and `BookSerie` with relevant properties and utilities.
- Include macOS entitlements plist for app development with advanced permissions.
- Add utility functions to handle script hashing, cookie management, and content formatting.
