test(server): reproduce partial startup catalog reads

packages/server/test/fixtures/delayed-catalog-plugin.ts

@@ -0,0 +1,18 @@
+import { Plugin } from "@opencode-ai/plugin/v2/effect"
+import { Effect } from "effect"
+
+export default Plugin.define({
+  id: "delayed-catalog",
+  effect: Effect.fn(function* (ctx) {
+    yield* Effect.sleep("300 millis")
+    yield* ctx.catalog.transform((catalog) => {
+      catalog.provider.update("delayed-provider", (provider) => {
+        provider.name = "Delayed Provider"
+      })
+      catalog.model.update("delayed-provider", "delayed-model", (model) => {
+        model.name = "Delayed Model"
+        model.enabled = true
+      })
+    })
+  }),
+})