Replace Instance.disposeAll/load with fixture helper (#25418)

packages/opencode/test/tool/skill.test.ts

@@ -8,7 +8,7 @@ import type { Tool } from "@/tool/tool"
 import { Instance } from "../../src/project/instance"
 import { SkillTool } from "../../src/tool/skill"
 import { ToolRegistry } from "@/tool/registry"
-import { provideTmpdirInstance } from "../fixture/fixture"
+import { disposeAllInstances, provideTmpdirInstance } from "../fixture/fixture"
 import { SessionID, MessageID } from "../../src/session/schema"
 import { testEffect } from "../lib/effect"
 
@@ -23,7 +23,7 @@ const baseCtx: Omit<Tool.Context, "ask"> = {
 }
 
 afterEach(async () => {
-  await Instance.disposeAll()
+  await disposeAllInstances()
 })
 
 const node = CrossSpawnSpawner.defaultLayer