Improve MineGeo interface and functionality

tests/site-settings.test.ts

@@ -0,0 +1,19 @@
+import assert from "node:assert/strict";
+import { test } from "node:test";
+import { siteSettingsSchema } from "../shared/site-settings";
+
+test("site settings accept only an explicit boolean and reject privilege fields", () => {
+  for (const enabled of [false, true])
+    assert.equal(
+      siteSettingsSchema.parse({ betaBadgeEnabled: enabled }).betaBadgeEnabled,
+      enabled,
+    );
+  for (const payload of [
+    {},
+    { betaBadgeEnabled: "false" },
+    { betaBadgeEnabled: null },
+    { betaBadgeEnabled: false, role: "moderator" },
+    { betaBadgeEnabled: false, updatedBy: "another-player" },
+  ])
+    assert.equal(siteSettingsSchema.safeParse(payload).success, false);
+});