appview,knotserver: pass repo handle to knot when proxying git ops
Adds 'x-tangled-repo-owner-handle' header when proxying git requests to
the knot. This allows knotserver to attempt to suggest the correct
git+ssh URL when rejecting a HTTP git push.
authored by
tjh.dev
and committed by
anirudh.fi
4d5576b1
5139c88a