ci: switch prod deploy to server-side git pull and go build

scripts/ops/deploy_binary.sh

@@ -39,7 +39,7 @@ health_check() {
 }
 
 restart_service() {
-  if command -v systemctl >/dev/null 2>&1 && systemctl list-unit-files | grep -q "^${SERVICE_NAME}.service"; then
+  if command -v systemctl >/dev/null 2>&1 && systemctl cat "${SERVICE_NAME}.service" >/dev/null 2>&1; then
     log "restarting systemd service: ${SERVICE_NAME}"
     systemctl restart "$SERVICE_NAME"
   else
@@ -58,7 +58,7 @@ create_service_if_needed() {
     return 0
   fi
 
-  if systemctl list-unit-files | grep -q "^${SERVICE_NAME}.service"; then
+  if systemctl cat "${SERVICE_NAME}.service" >/dev/null 2>&1; then
     return 0
   fi