fix: add build tools and copy node_modules from builder

- Install python3, make, g++ in builder for native module compilation
- Copy node_modules from builder stage to avoid rebuild in production
- Fixes usb package compilation error in node:20-alpine

frontend/Dockerfile

@@ -3,11 +3,14 @@ FROM node:20-alpine AS builder
 
 WORKDIR /app
 
+# Install build tools for native modules
+RUN apk add --no-cache python3 make g++
+
 # Copy root package files for workspace install
 COPY package*.json ./
 COPY frontend/package*.json ./frontend/
 
-# Install dependencies using npm install (no individual lockfile in workspace)
+# Install dependencies
 RUN npm install --legacy-peer-deps
 
 # Copy frontend source
@@ -26,8 +29,8 @@ WORKDIR /app
 COPY package*.json ./
 COPY frontend/package*.json ./frontend/
 
-# Install production dependencies
-RUN npm install --legacy-peer-deps --omit=dev
+# Copy node_modules from builder (includes compiled native modules)
+COPY --from=builder /app/node_modules ./node_modules
 
 # Copy built files from builder
 COPY --from=builder /app/frontend/.next ./frontend/.next