Crawl4AI: Unauthenticated RCE via Chromium launch-argument injection in browser_config.extra_args

The Docker API server accepted a request-supplied browserconfig.extraargs, which flowed into Chromium's launch arguments. An attacker could inject Chromium switches that replace a child-process launch command --utility-cmd-prefix, --renderer-cmd-prefix, --gpu-launcher, --browser-subprocess-path...