fix: resolve Node.js and npm installation issues

- Add proper Node.js repository setup
- Install Node.js and npm correctly
- Add yarn installation
- Add version verification
- Clean up package lists after installation

Dockerfile

@@ -7,7 +7,20 @@ FROM python:3.10-slim-bookworm AS base
 ARG CACHEBUST=1
 ARG DEBIAN_FRONTEND=noninteractive
 
-# Update package lists and install essential build dependencies
+# Install Node.js and npm properly
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+        curl \
+        gnupg \
+    && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg \
+    && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_20.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list \
+    && apt-get update \
+    && apt-get install -y nodejs \
+    && npm install -g yarn \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install system dependencies
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
         build-essential \
@@ -24,6 +37,9 @@ RUN apt-get update && \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
+# Verify Node.js and npm installation
+RUN node --version && npm --version && yarn --version
+
 # Install Python dependencies
 RUN pip install --no-cache-dir \
     gunicorn \
@@ -52,12 +68,6 @@ RUN pip install --no-cache-dir nltk && \
 # ============================================
 FROM base AS web-builder
 
-# Install Node.js and build tools
-RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && \
-    apt-get update && \
-    apt-get install -y nodejs && \
-    npm install -g yarn
-
 WORKDIR /app
 
 # Copy web directory first