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

packages/opencode/src/mcp/auth.ts

@@ -2,7 +2,7 @@ import path from "path"
 import { serviceUse } from "@opencode-ai/core/effect/service-use"
 import { Global } from "@opencode-ai/core/global"
 import { Effect, Layer, Context, Option, Schema } from "effect"
-import { AppFileSystem } from "@opencode-ai/core/filesystem"
+import { FSUtil } from "@opencode-ai/core/fs-util"
 import { EffectFlock } from "@opencode-ai/core/util/effect-flock"
 
 export const Tokens = Schema.Struct({
@@ -59,7 +59,7 @@ export const use = serviceUse(Service)
 export const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
-    const fs = yield* AppFileSystem.Service
+    const fs = yield* FSUtil.Service
     const flock = yield* EffectFlock.Service
 
     const read = Effect.fn("McpAuth.read")(function* () {
@@ -166,9 +166,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(EffectFlock.defaultLayer),
-  Layer.provide(AppFileSystem.defaultLayer),
-)
+export const defaultLayer = layer.pipe(Layer.provide(EffectFlock.defaultLayer), Layer.provide(FSUtil.defaultLayer))
 
 export * as McpAuth from "./auth"