When MetaBlogizer creates HAProxy vhosts, it routes through mitmproxy_inspector
for WAF inspection. However, mitmproxyctl sync-routes needs the original_backend
field to determine where to forward traffic after WAF inspection.
Without original_backend, sites would return 404 after upload because mitmproxy
had no route to forward traffic to the actual backend.
This fix adds original_backend=$backend_name to all 3 vhost creation locations:
- method_create_site (line 491)
- method_emancipate_site (line 1210)
- method_upload_and_create_site (line 2001)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>