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

packages/opencode/test/bus/bus-integration.test.ts

@@ -3,7 +3,7 @@ import { Schema } from "effect"
 import { Bus } from "../../src/bus"
 import { BusEvent } from "../../src/bus/bus-event"
 import { Instance } from "../../src/project/instance"
-import { tmpdir } from "../fixture/fixture"
+import { disposeAllInstances, tmpdir } from "../fixture/fixture"
 
 const TestEvent = BusEvent.define("test.integration", Schema.Struct({ value: Schema.Number }))
 
@@ -12,7 +12,7 @@ function withInstance(directory: string, fn: () => Promise<void>) {
 }
 
 describe("Bus integration: acquireRelease subscriber pattern", () => {
-  afterEach(() => Instance.disposeAll())
+  afterEach(() => disposeAllInstances())
 
   test("subscriber via callback facade receives events and cleans up on unsub", async () => {
     await using tmp = await tmpdir()
@@ -78,7 +78,7 @@ describe("Bus integration: acquireRelease subscriber pattern", () => {
       await Bun.sleep(10)
     })
 
-    await Instance.disposeAll()
+    await disposeAllInstances()
     await Bun.sleep(50)
 
     expect(received).toEqual([1])