Add the jellyfin-ha-src Gitea repository that carries the HA source fork of
ZoltyMat/jellyfin-ha with local patches, replacing the direct upstream clone
in the build pipeline.
Declare the repository as public with a main default branch and
delete-branch-after-merge enabled. Leave branch protection unset so the
initial fork seed can push the pinned upstream tree and a pristine upstream
ref directly to main; protection is added in a follow-up change once the fork
is seeded.
unkinben