v1: Forgejo <-> Radicle sync daemon

Bidirectional git/issues/patches mirroring across any number of Forgejo
instances and Radicle nodes sharing a repo, with a status dashboard
(per-repo activity heatmap, full mirror topology, clickable links to
every mirrored side).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KB7C5CeuMbQujqRtb4foki

Artifacts