When tunnel services encounter 'address already in use' errors during
creation/update, automatically cleanup and retry once instead of failing
immediately. This handles race conditions during rapid tunnel reconfiguration.
Entire-Checkpoint: 39e6fb9de836
* feat: add comprehensive migration test for legacy columns
- Add ExtraIPs, TCPListenAddr, UDPListenAddr to Node migration
- Add ip_preference to Tunnel migration
- Add test for very legacy database migration (1.x schema)
- Include issue #211 tracking document
Entire-Checkpoint: 0d086883c34a
* fix: apply custom IP binding to forward and tunnel chain services
Entire-Checkpoint: ceff329d4cf4
- Add extra_ips field to nodes for multi-IP servers
- Add connect_ip field to chain_tunnel for specifying connection address
- Add in_ip field to forward_port for specifying listen address
- Frontend: add UI controls for extra IPs on node form
- Frontend: add connect IP input for tunnel chain nodes
- Frontend: add listen IP input for forward form
- Backend: resolve forward ingress with custom listen IP priority
Entire-Checkpoint: 557563462c16