refactor(core): consolidate filesystem services (#30447)

packages/opencode/test/control-plane/workspace.test.ts

@@ -7,7 +7,7 @@ import { NodeHttpServer } from "@effect/platform-node"
 import { Effect, Exit, Fiber, Layer, Schema } from "effect"
 import { FetchHttpClient, HttpServer, HttpServerRequest, HttpServerResponse } from "effect/unstable/http"
 import { eq } from "drizzle-orm"
-import { AppFileSystem } from "@opencode-ai/core/filesystem"
+import { FSUtil } from "@opencode-ai/core/fs-util"
 import * as Log from "@opencode-ai/core/util/log"
 import { GlobalBus, type GlobalEvent } from "@/bus/global"
 import { Database } from "@opencode-ai/core/database/database"
@@ -55,7 +55,7 @@ const workspaceLayer = (experimentalWorkspaces: boolean) =>
     Layer.provide(Database.defaultLayer),
     Layer.provide(EventV2Bridge.defaultLayer),
     Layer.provide(FetchHttpClient.layer),
-    Layer.provide(AppFileSystem.defaultLayer),
+    Layer.provide(FSUtil.defaultLayer),
     Layer.provide(RuntimeFlags.layer({ experimentalWorkspaces })),
     Layer.provide(InstanceStore.defaultLayer.pipe(Layer.provide(InstanceBootstrap.defaultLayer))),
   )