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

packages/core/src/models-dev.ts

@@ -5,7 +5,7 @@ import { Global } from "./global"
 import { Flag } from "./flag/flag"
 import { Flock } from "./util/flock"
 import { Hash } from "./util/hash"
-import { AppFileSystem } from "./filesystem"
+import { FSUtil } from "./fs-util"
 import { InstallationChannel, InstallationVersion } from "./installation/version"
 import { EventV2 } from "./event"
 
@@ -125,7 +125,7 @@ export class Service extends Context.Service<Service, Interface>()("@opencode/Mo
 export const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
-    const fs = yield* AppFileSystem.Service
+    const fs = yield* FSUtil.Service
     const events = yield* EventV2.Service
     const http = HttpClient.filterStatusOk(
       (yield* HttpClient.HttpClient).pipe(
@@ -227,7 +227,7 @@ export const layer = Layer.effect(
 
 export const defaultLayer = layer.pipe(
   Layer.provide(FetchHttpClient.layer),
-  Layer.provide(AppFileSystem.defaultLayer),
+  Layer.provide(FSUtil.defaultLayer),
   Layer.provide(EventV2.defaultLayer),
 )