refactor(opencode): build runtimes from layer nodes (#34515)

packages/opencode/src/server/routes/instance/httpapi/websocket-tracker.ts

@@ -1,4 +1,5 @@
 import { Context, Effect, Layer, Option } from "effect"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import * as Socket from "effect/unstable/socket/Socket"
 
 export const SERVER_CLOSING_EVENT = () => new Socket.CloseEvent(1001, "server closing")
@@ -13,7 +14,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/HttpApiWebSocketTracker") {}
 
-export const layer = Layer.sync(Service)(() => {
+const layer = Layer.sync(Service)(() => {
   const sockets = new Set<Close>()
   let closing = false
   return Service.of({
@@ -44,6 +45,8 @@ export const layer = Layer.sync(Service)(() => {
   })
 })
 
+export const node = LayerNode.make({ service: Service, layer, deps: [] })
+
 export const register = (close: Close) =>
   Effect.gen(function* () {
     const tracker = yield* Effect.serviceOption(Service)