test(server): silence the broken fixture plugin warning

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/server/test/api.test.ts

@@ -1,4 +1,4 @@
-import { afterEach, beforeEach, describe, expect, test } from "bun:test";
+import { afterEach, beforeEach, describe, expect, spyOn, test } from "bun:test";
 import { mkdtemp, rm } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
@@ -10,7 +10,10 @@ import { sessionCookie as buildSessionCookie } from "../src/http.ts";
 import { safeFilename } from "../src/routes/attachments.ts";
 
 const ECHO_DIR = join(import.meta.dir, "../../../packages/core/test/fixtures/plugins");
+// The fixture dir also holds a deliberately broken plugin; silence its load warning.
+const warn = spyOn(console, "warn").mockImplementation(() => {});
 const registry: PluginRegistry = await loadPlugins([ECHO_DIR]);
+warn.mockRestore();
 const BASE = "http://localhost/api/v1";
 
 type App = ReturnType<typeof createApp>;