A thin HTTP proxy to the public PeerTube demo instance with overrides so the
authenticated screens populate without an account, for regenerating the README
screenshots without the private instance. Includes a debug-only cleartext flag
so a debug build can reach the proxy over HTTP. Kept on this branch; main stays
clean. See tools/mock/README.md.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>