fix: enforce joint service lifecycle

**Motivations :**
- avoid partial start/stop scenarios between lui and relay

**Modifications :**
- simplify start-dev.sh interface to always operate on both services simultaneously

**Page affectées :**
- start-dev.sh

start-dev.sh

@@ -151,38 +151,11 @@ command_all() {
   esac
 }
 
-if [ "$#" -lt 1 ]; then
-  echo "Usage: $0 {start|stop|restart|status} [front|relay|all]" >&2
+if [ "$#" -ne 1 ]; then
+  echo "Usage: $0 {start|stop|restart|status}" >&2
   exit 1
 fi
 
 ACTION="$1"
-TARGET="${2:-all}"
 
-case "${TARGET}" in
-  front)
-    case "${ACTION}" in
-      start) start_front ;;
-      stop) stop_front ;;
-      restart) stop_front; start_front ;;
-      status) status_service "ihm_client" "${FRONT_PID_FILE}" "${FRONT_PORT}" ;;
-      *) echo "Unknown action: ${ACTION}" >&2; exit 1 ;;
-    esac
-    ;;
-  relay)
-    case "${ACTION}" in
-      start) start_relay ;;
-      stop) stop_relay ;;
-      restart) stop_relay; start_relay ;;
-      status) status_service "sdk_relay" "${RELAY_PID_FILE}" "${RELAY_PORT}" ;;
-      *) echo "Unknown action: ${ACTION}" >&2; exit 1 ;;
-    esac
-    ;;
-  all)
-    command_all "${ACTION}"
-    ;;
-  *)
-    echo "Unknown target: ${TARGET}" >&2
-    exit 1
-    ;;
-esac
+command_all "${ACTION}"