fix: disable fullscreen table token animation

features/agent/table-fullscreen-animation.test.ts

@@ -0,0 +1,13 @@
+import { readFileSync } from "node:fs";
+import { join } from "node:path";
+import { describe, expect, it } from "vitest";
+
+describe("Streamdown fullscreen table", () => {
+  it("disables inherited token animations only inside the fullscreen copy", () => {
+    const styles = readFileSync(join(process.cwd(), "app/globals.css"), "utf8");
+
+    expect(styles).toMatch(
+      /\[data-streamdown="table-fullscreen"\] \[data-sd-animate\] \{\s*animation: none;\s*filter: none;\s*opacity: 1;\s*transform: none;\s*\}/
+    );
+  });
+});