test(core): simplify git layer wiring

packages/core/test/git.test.ts

@@ -4,12 +4,13 @@ import fs from "fs/promises"
 import path from "path"
 import { Effect } from "effect"
 import { Git } from "@opencode-ai/core/git"
+import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { AbsolutePath } from "@opencode-ai/core/schema"
 import { branch, commit, gitRemote } from "./fixture/git"
 import { tmpdir } from "./fixture/tmpdir"
 import { testEffect } from "./lib/effect"
 
-const it = testEffect(Git.defaultLayer)
+const it = testEffect(LayerNode.buildLayer(Git.node))
 
 describe("Git", () => {
   it.live("clones a remote and reads checkout metadata", () =>

packages/core/test/ripgrep.test.ts

@@ -2,13 +2,12 @@ import { describe, expect } from "bun:test"
 import fs from "fs/promises"
 import path from "path"
 import { Effect } from "effect"
-import { LayerNode } from "@opencode-ai/core/effect/layer-node"
 import { Ripgrep } from "@opencode-ai/core/ripgrep"
 import { RelativePath } from "@opencode-ai/core/schema"
 import { tmpdir } from "./fixture/tmpdir"
 import { testEffect } from "./lib/effect"
 
-const it = testEffect(LayerNode.buildLayer(Ripgrep.node))
+const it = testEffect(Ripgrep.defaultLayer)
 
 describe("Ripgrep", () => {
   it.live("keeps ignored files out of catch-all find results", () =>