refactor(tool): convert apply_patch to Tool.defineEffect (#21938)

packages/opencode/test/session/snapshot-tool-race.test.ts

@@ -54,6 +54,7 @@ import { Truncate } from "../../src/tool/truncate"
 import { AppFileSystem } from "../../src/filesystem"
 import * as CrossSpawnSpawner from "../../src/effect/cross-spawn-spawner"
 import { Ripgrep } from "../../src/file/ripgrep"
+import { Format } from "../../src/format"
 
 Log.init({ print: false })
 
@@ -138,6 +139,7 @@ function makeHttp() {
     Layer.provide(FetchHttpClient.layer),
     Layer.provide(CrossSpawnSpawner.defaultLayer),
     Layer.provide(Ripgrep.defaultLayer),
+    Layer.provide(Format.defaultLayer),
     Layer.provideMerge(todo),
     Layer.provideMerge(question),
     Layer.provideMerge(deps),