fix(core): await plugin readiness

packages/opencode/test/server/httpapi-reference.test.ts

@@ -4,6 +4,8 @@ import { Server } from "../../src/server/server"
 import { Global } from "@opencode-ai/core/global"
 import { resetDatabase } from "../fixture/db"
 import { disposeAllInstances, tmpdir } from "../fixture/fixture"
+import { Effect } from "effect"
+import { pollWithTimeout } from "../lib/effect"
 
 afterEach(async () => {
   await disposeAllInstances()
@@ -24,12 +26,19 @@ describe("reference HttpApi", () => {
       },
     })
 
-    const response = await Server.Default().app.request("/api/reference", {
-      headers: { "x-opencode-directory": tmp.path },
-    })
-
-    expect(response.status).toBe(200)
-    const body = await response.json()
+    const body = await Effect.runPromise(
+      pollWithTimeout(
+        Effect.promise(async () => {
+          const response = await Server.Default().app.request("/api/reference", {
+            headers: { "x-opencode-directory": tmp.path },
+          })
+          expect(response.status).toBe(200)
+          const body = await response.json()
+          return body.data.length === 0 ? undefined : body
+        }),
+        "references were not loaded",
+      ),
+    )
     expect(body).toMatchObject({ location: { directory: tmp.path } })
     expect(body.data).toEqual([
       {