refactor(core): remove infrastructure layer exports (#34624)

packages/core/src/project.ts

@@ -51,7 +51,7 @@ export interface Interface {
 
 export class Service extends Context.Service<Service, Interface>()("@opencode/ProjectV2") {}
 
-export const layer = Layer.effect(
+const layer = Layer.effect(
   Service,
   Effect.gen(function* () {
     const fs = yield* FSUtil.Service
@@ -129,11 +129,6 @@ export const layer = Layer.effect(
   }),
 )
 
-export const defaultLayer = layer.pipe(
-  Layer.provide(FSUtil.defaultLayer),
-  Layer.provide(Git.defaultLayer),
-  Layer.provideMerge(ProjectDirectories.defaultLayer),
-)
 export const node = makeGlobalNode({
   service: Service,
   layer: layer,