fix: NODE_ENV=production was silently skipping devDeps during Docker build - move to runtime only, add lightningcss

Dockerfile

@@ -5,8 +5,7 @@ LABEL maintainer="LifeLine Team" \
       org.opencontainers.image.title="LifeLine AI" \
       description="Next.js frontend with optional Python FastAPI backend (Hugging Face Spaces ready)"
 
-ENV NODE_ENV=production \
-    PYTHONUNBUFFERED=1 \
+ENV PYTHONUNBUFFERED=1 \
     DEBIAN_FRONTEND=noninteractive
 
 # Root workspace
@@ -24,12 +23,9 @@ COPY . .
 # Move into frontend folder
 WORKDIR /app/lifeline-ai
 
-# Install frontend dependencies
-RUN if [ -f package-lock.json ]; then \
-      npm ci --no-audit --no-fund; \
-    else \
-      npm install --no-audit --no-fund; \
-    fi
+# Install ALL dependencies (including devDependencies needed for build)
+# NODE_ENV is NOT set to production here — that would skip devDeps and break the build
+RUN npm ci --include=dev --no-audit --no-fund
 
 # Build frontend
 RUN npm run build
@@ -43,5 +39,8 @@ RUN pip install --no-cache-dir --upgrade pip && \
 # Expose HF Space port
 EXPOSE 7860
 
+# Set production mode at runtime only (not at build time)
+ENV NODE_ENV=production
+
 # Run backend + frontend
 CMD ["sh", "-c", "uvicorn backend.app.main:app --host 127.0.0.1 --port 8000 2>/dev/null & cd /app/lifeline-ai && exec npm run start -- -p 7860"]

lifeline-ai/package-lock.json

@@ -22,6 +22,7 @@
         "autoprefixer": "latest",
         "eslint": "^9",
         "eslint-config-next": "16.2.2",
+        "lightningcss": "latest",
         "postcss": "latest",
         "tailwindcss": "latest",
         "typescript": "^5"

lifeline-ai/package.json

@@ -25,6 +25,7 @@
     "autoprefixer": "latest",
     "eslint": "^9",
     "eslint-config-next": "16.2.2",
+    "lightningcss": "latest",
     "postcss": "latest",
     "tailwindcss": "latest",
     "typescript": "^5"