Changes:
- Fix nginx proxy_pass directives to use 127.0.0.1 instead of localhost
- Fix bridge homeserverUrl to use explicit IPv4 address
- Enable debug logging on conduwuit
- Add spec-kit framework files to .gitignore
- Document deployment in comprehensive worklog
Resolves connection refused errors from localhost resolving to IPv6 [::1]
while services bind only to IPv4 127.0.0.1. Bridge now fully operational
with bidirectional Slack-Matrix message flow working.