did something

internal/api/handlers/instance.go

@@ -28,9 +28,12 @@ func (h *InstanceHandler) Get(w http.ResponseWriter, r *http.Request) {
 	})
 }
 
-// sshHost extracts the hostname from InstanceURL. Falls back to the request
-// host when InstanceURL is unset (common in local development).
+// sshHost resolves the SSH hostname to display in clone URLs.
+// Priority: SSH_HOST env var > InstanceURL hostname > request Host header > localhost.
 func (h *InstanceHandler) sshHost(r *http.Request) string {
+	if h.cfg.SSHHost != "" {
+		return h.cfg.SSHHost
+	}
 	if h.cfg.InstanceURL != "" {
 		if u, err := url.Parse(h.cfg.InstanceURL); err == nil && u.Hostname() != "" {
 			return u.Hostname()
@@ -41,5 +44,5 @@ func (h *InstanceHandler) sshHost(r *http.Request) string {
 	if u, err := url.Parse("http://" + host); err == nil {
 		return u.Hostname()
 	}
-	return host
+	return "localhost"
 }