- Route gRPC-Web requests to Orchestrator via h2c transport
- Handle CORS preflight and response headers for cross-origin access
- Proxy remaining traffic to SvelteKit dev server
- Configurable via env vars: ORCHESTRATOR_HOST, UI_HOST, DOMAIN, CORS_ORIGIN
Closes#3
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>