refactor(opencode): use layer nodes in remaining harnesses (#34516)

packages/opencode/test/session/structured-output-integration.test.ts

@@ -1,7 +1,9 @@
 import { describe, expect, test } from "bun:test"
 import { SessionV1 } from "@opencode-ai/core/v1/session"
 import { Ripgrep } from "@opencode-ai/core/ripgrep"
-import { Effect, Layer } from "effect"
+import { Effect } from "effect"
+import { AppNodeBuilder } from "@opencode-ai/core/effect/app-node-builder"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { Session } from "@/session/session"
 import { SessionPrompt } from "../../src/session/prompt"
 import { MessageV2 } from "../../src/session/message-v2"
@@ -10,7 +12,7 @@ import { testEffect } from "../lib/effect"
 // Skip tests if no API key is available
 const hasApiKey = !!process.env.ANTHROPIC_API_KEY
 const it = testEffect(
-  Layer.mergeAll(SessionPrompt.defaultLayer, Session.defaultLayer).pipe(Layer.provide(Ripgrep.defaultLayer)),
+  AppNodeBuilder.build(LayerNode.group([SessionPrompt.node, Session.node, Ripgrep.node])),
 )
 const live = hasApiKey ? it.instance : it.instance.skip