5f2720ae4e
Tunnel routes were being managed ad-hoc via Cloudflare API. Now codified in Terraform so they can't drift — neuron.neuralplatform.ai was missing from the tunnel config, causing 404s for Neuron MCP connections. Also fix mcp.json: type http → sse (Neuron uses SSE transport, not streamable HTTP). CF-Access headers were already present and correct.