The GitLab and Gitea / Forgejo sources and the Forgejo, GitHub and GitLab destinations show a beta pill and beta wording; the docs say GitHub to Gitea is the supported path. Testing every source and destination pair against real hosts turned up three bugs, fixed here: the pull mirror path never recorded a row's destination host, reconcile counted rows mirrored to a previous destination as missing, and the first push into a freshly created GitLab project failed because the host reports it as not found for a couple of seconds.
GitHub and GitLab as mirror destinations, both beta. Neither has a usable pull mirror API, so the app keeps a bare clone of each source repository and pushes its branches and tags to the target with force and prune. Target adapters create, archive and delete repositories through each host's API. A dispatcher routes mirror, sync, retry, scheduler, recovery and cleanup by destination; Gitea and Forgejo are unchanged. Migration 0018 records each repository's destination host. Metadata, LFS, wiki and force push protection are disabled with a reason for push targets.
Closes#377