fix: finish 2.9.0 plugin moves and get every check green

plugins/ssh-terminal/tests/backend/settings-validation.test.ts

@@ -0,0 +1,21 @@
+import { describe, expect, it } from "vitest";
+import { validateAdminSettings } from "../../src/backend/settings-validation.js";
+
+describe("validateAdminSettings", () => {
+  it("rejects relative image paths", () => {
+    expect(
+      Object.keys(
+        validateAdminSettings({
+          imageLocalDir: "images",
+          imageHostPath: "tmp/images",
+        }),
+      ).sort(),
+    ).toEqual(["imageHostPath", "imageLocalDir"]);
+  });
+
+  it("accepts absolute paths and empty values", () => {
+    expect(
+      validateAdminSettings({ imageLocalDir: "", imageHostPath: "/tmp/img" }),
+    ).toEqual({});
+  });
+});