fix(web): resolve dashboard widget errors and deployment config

- Add workspace ID to ActiveProjectsWidget API calls (fixes 401/403)
- Add ORCHESTRATOR_URL and ORCHESTRATOR_API_KEY to web service in swarm
  compose (fixes 503 on orchestrator proxy routes)
- Add internal network to web service for orchestrator connectivity
- Update .env.example domain examples to single-level subdomains
- Fix version display on login page from v0.1 to v0.0.20

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

docker-compose.swarm.portainer.yml

@@ -176,6 +176,9 @@ services:
       NODE_ENV: production
       PORT: ${WEB_PORT:-3000}
       NEXT_PUBLIC_API_URL: ${NEXT_PUBLIC_API_URL}
+      # Server-side orchestrator proxy (API routes forward to orchestrator service)
+      ORCHESTRATOR_URL: http://orchestrator:3001
+      ORCHESTRATOR_API_KEY: ${ORCHESTRATOR_API_KEY}
     healthcheck:
       test:
         [
@@ -187,6 +190,7 @@ services:
       retries: 3
       start_period: 40s
     networks:
+      - internal
       - traefik-public
     deploy:
       restart_policy: