Remove nginx, use only Traefik for routing

Changes:
- Create new Dockerfile.traefik using serve instead of nginx
- Update docker-compose.demo.yml to use Traefik labels on web container
- Web container now serves on port 3000 internally
- Traefik routes both /graphql (priority 20) and / (priority 1)

This eliminates the nginx layer and simplifies the architecture to use
only Traefik for all routing.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: Matthew Valancy

docker-compose.demo.yml

@@ -78,7 +78,7 @@ services:
   web:
     build:
       context: .
-      dockerfile: packages/web/Dockerfile
+      dockerfile: packages/web/Dockerfile.traefik
     container_name: graphdone-web
     environment:
       - NODE_ENV=production
@@ -93,7 +93,7 @@ services:
       - "traefik.http.routers.demo-web.rule=PathPrefix(`/`)"
       - "traefik.http.routers.demo-web.priority=1"
       - "traefik.http.routers.demo-web.entrypoints=web"
-      - "traefik.http.services.demo-web.loadbalancer.server.port=80"
+      - "traefik.http.services.demo-web.loadbalancer.server.port=3000"
 
 volumes:
   neo4j_data:

packages/web/Dockerfile.traefik

@@ -0,0 +1,39 @@
+FROM node:18-alpine AS builder
+
+# Build argument for base path
+ARG BASE_PATH=/
+
+WORKDIR /app
+
+# Copy package files
+COPY package.json package-lock.json turbo.json ./
+COPY packages/core/package.json ./packages/core/
+COPY packages/web/package.json ./packages/web/
+COPY tsconfig.json ./
+
+# Install dependencies
+RUN npm ci
+
+# Copy source code
+COPY packages/core ./packages/core
+COPY packages/web ./packages/web
+
+# Build the application
+ENV BASE_PATH=${BASE_PATH}
+RUN npm run build
+
+# Production stage - simple Node static server
+FROM node:18-alpine
+
+WORKDIR /app
+
+# Install serve for static file hosting
+RUN npm install -g serve
+
+# Copy built files
+COPY --from=builder /app/packages/web/dist ./dist
+
+EXPOSE 3000
+
+# Serve static files on port 3000
+CMD ["serve", "-s", "dist", "-l", "3000"]