Update Dockerfile

Dockerfile

@@ -3,8 +3,9 @@
 FROM node:18-slim AS angular-build
 WORKDIR /app
 COPY flare-ui/package*.json ./
-# Use npm install instead of ci since we don't have package-lock.json
-RUN npm install --legacy-peer-deps
+
+# Clean npm cache and install with legacy peer deps
+RUN npm cache clean --force && npm install --legacy-peer-deps
 COPY flare-ui/ ./
 RUN npm run build
 # Debug: List directories to see where the build output is