fix: remove nginx, serve frontend from Express on port 3000, fix static path

Dockerfile

@@ -18,11 +18,11 @@ COPY backend/ ./
 RUN npx prisma generate --schema=src/prisma/schema.prisma
 RUN npm run build
 
-# Stage 3: Production (Debian slim to match build stage, avoiding Alpine musl/OpenSSL issues)
+# Stage 3: Production (Debian slim — same glibc as build, no musl/OpenSSL issues)
 FROM node:20-slim
 WORKDIR /app
 
-RUN apt-get update && apt-get install -y nginx openssl --no-install-recommends && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y openssl --no-install-recommends && rm -rf /var/lib/apt/lists/*
 
 # Copy backend
 COPY --from=backend-build /app/backend/dist ./dist
@@ -30,15 +30,12 @@ COPY --from=backend-build /app/backend/node_modules ./node_modules
 COPY --from=backend-build /app/backend/src/prisma ./prisma
 COPY backend/package.json ./package.json
 
-# Copy frontend build
+# Copy frontend build — served by Express at /app/public
 COPY --from=frontend-build /app/frontend/dist ./public
 
-# Nginx config
-COPY nginx.conf /etc/nginx/nginx.conf
-
 COPY start.sh ./
 RUN chmod +x start.sh
 
-EXPOSE 80
+EXPOSE 3000
 
 CMD ["./start.sh"]

backend/src/index.ts

@@ -22,7 +22,7 @@ import settingsRouter from './routes/settings';
 import notificationsRouter from './routes/notifications';
 
 const app = express();
-const PORT = process.env.PORT || 5000;
+const PORT = parseInt(process.env.PORT || '3000', 10);
 
 // Security
 app.use(helmet({ contentSecurityPolicy: false }));
@@ -71,7 +71,8 @@ app.use('/api/v1/settings', settingsRouter);
 app.use('/api/v1/notifications', notificationsRouter);
 
 // Serve frontend in production
-const frontendDist = path.join(__dirname, '../../public');
+// __dirname = /app/dist, frontend is at /app/public
+const frontendDist = path.join(__dirname, '../public');
 app.use(express.static(frontendDist));
 app.get('*', (req, res) => {
   res.sendFile(path.join(frontendDist, 'index.html'));

start.sh

@@ -179,8 +179,5 @@ async function seed() {
 seed();
 " 2>/dev/null || echo "[start] Seed warning (continuing)"
 
-echo "[start] Starting nginx..."
-nginx
-
-echo "[start] Starting Node.js backend on port 5000..."
+echo "[start] Starting Node.js backend on port 3000..."
 exec node dist/index.js