Fix Docker build: use npm install and include package-lock.json

.gitignore

@@ -60,5 +60,3 @@ data/api_data/
 # App folder (optional Streamlit)
 app/
 
-# Package lock (let npm generate fresh)
-web/package-lock.json

Dockerfile

@@ -35,8 +35,8 @@ RUN pip install --no-cache-dir --upgrade pip && \
 COPY web/package*.json ./web/
 WORKDIR /app/web
 
-# Install Node dependencies
-RUN npm ci
+# Install Node dependencies (use npm install for robustness)
+RUN npm install
 
 # Copy web source files and build
 COPY web/ .