feat(web): Dockerize web app, wire to deployed backend

- Add web/Dockerfile (node:20 builder + nginx:alpine, port 3085)
- Add web service to docker-compose.yml with VITE_ build args
- Create web/.env and mobile/.env pointing to api.bytelyst.com
- Backend port mapping: 4025:4018 (4018 reserved by actiontrail)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -17,6 +17,25 @@ services:
       - platform_net
     restart: unless-stopped
 
+  web:
+    build:
+      context: .
+      dockerfile: web/Dockerfile
+      args:
+        GITEA_NPM_TOKEN: ${GITEA_NPM_TOKEN}
+        VITE_PRODUCT_ID: invttrdg
+        VITE_PLATFORM_URL: https://api.bytelyst.com/platform/api
+        VITE_TRADING_API_URL: https://api.bytelyst.com/invttrdg/api
+    container_name: invttrdg-web
+    ports:
+      - '3085:3085'
+    networks:
+      - default
+      - platform_net
+    restart: unless-stopped
+    depends_on:
+      - backend
+
 networks:
   default: {}
   platform_net:

web/Dockerfile

@@ -0,0 +1,42 @@
+# Build context: learning_ai_invt_trdg/ (monorepo root)
+# --- Stage 1: Build ---
+FROM node:20-alpine AS builder
+
+RUN corepack enable && corepack prepare pnpm@10.6.5 --activate
+
+WORKDIR /app
+
+ARG GITEA_NPM_TOKEN
+ENV GITEA_NPM_TOKEN=${GITEA_NPM_TOKEN}
+
+COPY .npmrc pnpm-workspace.yaml pnpm-lock.yaml* ./
+COPY package.json ./package.json
+COPY web/package.json ./web/package.json
+
+RUN pnpm install --filter @bytelyst/trading-web
+
+COPY web/ ./web/
+COPY shared/ ./shared/
+
+# Build-time env vars (baked into the static bundle)
+ARG VITE_PRODUCT_ID=invttrdg
+ARG VITE_PLATFORM_URL=https://api.bytelyst.com/platform/api
+ARG VITE_TRADING_API_URL=https://api.bytelyst.com/invttrdg/api
+
+ENV VITE_PRODUCT_ID=${VITE_PRODUCT_ID}
+ENV VITE_PLATFORM_URL=${VITE_PLATFORM_URL}
+ENV VITE_TRADING_API_URL=${VITE_TRADING_API_URL}
+
+WORKDIR /app/web
+RUN pnpm run build
+
+# --- Stage 2: Serve ---
+FROM nginx:alpine
+
+COPY --from=builder /app/web/dist /usr/share/nginx/html
+
+# SPA fallback: all routes serve index.html
+RUN printf 'server {\n  listen 3085;\n  root /usr/share/nginx/html;\n  index index.html;\n  location / {\n    try_files $uri $uri/ /index.html;\n  }\n  gzip on;\n  gzip_types text/plain text/css application/javascript application/json;\n}\n' > /etc/nginx/conf.d/default.conf
+
+EXPOSE 3085
+CMD ["nginx", "-g", "daemon off;"]