Normalize instance lifecycle wiring (#25501)

packages/opencode/src/project/instance-layer.ts

@@ -0,0 +1,11 @@
+import { Effect, Layer } from "effect"
+import { InstanceStore } from "./instance-store"
+
+export const layer = Layer.unwrap(
+  Effect.promise(async () => {
+    const { InstanceBootstrap } = await import("./bootstrap")
+    return InstanceStore.defaultLayer.pipe(Layer.provide(InstanceBootstrap.defaultLayer))
+  }),
+)
+
+export * as InstanceLayer from "./instance-layer"