Add 7 new init scripts to cover WebGL fingerprinting, missing Chrome
APIs, permissions behavior, CDP artifacts, and HeadlessChrome UA string.
Enable Chromium's new headless mode (Channel: "chromium") when stealth
is active to use the full UI layer that is harder to detect.
Closes#58
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>