- Replaced hardcoded LINUX_CERT_DIR with dynamic filesystem probing to support Debian, Arch, Fedora, and openSUSE system trust stores.
- Added updateNssDatabases helper to seamlessly inject root certificates directly into browser NSS databases (e.g., ~/.pki/nssdb, ~/.mozilla/firefox).
- Supported standard and snap-based Chrome/Chromium and Firefox installations.
- Made browser cert injection resilient, executing under the current user to prevent file ownership issues, and safely falling back if certutil is absent.
