lightnvr: fix npm

Author: themactep

package/lightnvr/lightnvr.mk

@@ -10,6 +10,7 @@ LIGHTNVR_INSTALL_STAGING = YES
 
 # Dependencies
 LIGHTNVR_DEPENDENCIES = thingino-ffmpeg thingino-libcurl sqlite host-nodejs cjson
+HOST_LIGHTNVR_DEPENDENCIES = host-nodejs
 
 ifeq ($(BR2_PACKAGE_MBEDTLS),y)
 LIGHTNVR_DEPENDENCIES += mbedtls
@@ -33,8 +34,9 @@ LIGHTNVR_CONF_OPTS = \
 define LIGHTNVR_BUILD_WEB_ASSETS
 	@echo "Building LightNVR web assets..."
 	cd $(@D)/web && \
-		npm ci --production=false && \
-		npm run build
+		export PATH=$(HOST_DIR)/bin/:$$PATH && \
+		$(HOST_DIR)/bin/npm ci --production=false && \
+		$(HOST_DIR)/bin/npm run build
 	@echo "Web assets built successfully"
 endef