feat(KB-662): add visibility-based refresh to dashboard hooks

packages/dashboard/src/server-static-assets.test.ts

@@ -0,0 +1,31 @@
+import express from "express";
+import { describe, expect, it } from "vitest";
+
+describe("static asset serving", () => {
+  it("returns 404 for missing asset paths instead of falling back to index.html", async () => {
+    const app = express();
+
+    app.use(express.static("packages/dashboard/dist/client", { index: false }));
+
+    app.get(/^(?!\/assets\/).*/, (_req, res) => {
+      res.sendFile("index.html", { root: "packages/dashboard/dist/client" });
+    });
+
+    const server = await new Promise<import("node:http").Server>((resolve) => {
+      const s = app.listen(0, () => resolve(s));
+    });
+
+    try {
+      const address = server.address();
+      if (!address || typeof address === "string") throw new Error("Failed to get test server port");
+
+      const res = await fetch(`http://127.0.0.1:${address.port}/assets/does-not-exist.js`);
+
+      expect(res.status).toBe(404);
+    } finally {
+      await new Promise<void>((resolve, reject) => {
+        server.close((err) => (err ? reject(err) : resolve()));
+      });
+    }
+  });
+});