fix: checkout submodules and use robust docker build stage

.github/workflows/docker-publish.yml

@@ -20,6 +20,8 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+        with:
+          submodules: recursive
 
       - name: Log in to GitHub Container Registry (GHCR)
         uses: docker/login-action@v3

Dockerfile.standalone

@@ -1,28 +1,33 @@
 # ---- Stage 1: Build frontend and wokwi-libs ----
-FROM node:20-slim AS frontend-builder
+FROM node:20 AS frontend-builder
 
 WORKDIR /app
 
 # Copy package.json for metadata generation
 COPY package.json .
-RUN npm install
+RUN npm install --ignore-scripts
 
 # Build avr8js
 COPY wokwi-libs/avr8js/ wokwi-libs/avr8js/
 WORKDIR /app/wokwi-libs/avr8js
-RUN npm install && npm run build
+RUN npm install --ignore-scripts && npm run build
+
+# Build rp2040js
+COPY wokwi-libs/rp2040js/ wokwi-libs/rp2040js/
+WORKDIR /app/wokwi-libs/rp2040js
+RUN npm install --ignore-scripts && npm run build
 
 # Build wokwi-elements
 COPY wokwi-libs/wokwi-elements/ wokwi-libs/wokwi-elements/
 WORKDIR /app/wokwi-libs/wokwi-elements
-RUN npm install && npm run build
+RUN npm install --ignore-scripts && npm run build
 
 # Build frontend
 WORKDIR /app
 COPY frontend/ frontend/
 COPY scripts/ scripts/
 WORKDIR /app/frontend
-RUN npm install \
+RUN npm install --ignore-scripts \
     && npm run build