fix: stabilize swift protocol generation and flaky tests

src/discord/monitor/thread-bindings.shared-state.test.ts

@@ -6,18 +6,36 @@ import {
   getThreadBindingManager,
 } from "./thread-bindings.js";
 
+type ThreadBindingsModule = {
+  getThreadBindingManager: typeof getThreadBindingManager;
+};
+
+async function loadThreadBindingsViaAlternateLoader(): Promise<ThreadBindingsModule> {
+  const jiti = createJiti(import.meta.url, {
+    interopDefault: true,
+  });
+  try {
+    return await jiti.import<ThreadBindingsModule>("./thread-bindings.ts");
+  } catch (error) {
+    // jiti@2 can fail under ESM test runners when mutating module.require.
+    if (
+      !(error instanceof TypeError) ||
+      !String(error.message).includes("Cannot set property require")
+    ) {
+      throw error;
+    }
+    const fallbackPath = "./thread-bindings.ts?vitest-loader-fallback";
+    return (await import(/* @vite-ignore */ fallbackPath)) as ThreadBindingsModule;
+  }
+}
+
 describe("thread binding manager state", () => {
   beforeEach(() => {
     threadBindingsTesting.resetThreadBindingsForTests();
   });
 
-  it("shares managers between ESM and Jiti-loaded module instances", () => {
-    const jiti = createJiti(import.meta.url, {
-      interopDefault: true,
-    });
-    const viaJiti = jiti("./thread-bindings.ts") as {
-      getThreadBindingManager: typeof getThreadBindingManager;
-    };
+  it("shares managers between ESM and Jiti-loaded module instances", async () => {
+    const viaJiti = await loadThreadBindingsViaAlternateLoader();
 
     createThreadBindingManager({
       accountId: "work",