chore: split dashboard quick actions into quarters and drop host status row lines

src/ui/tests/dashboard/quarter-borders.test.ts

@@ -0,0 +1,20 @@
+import { describe, expect, it } from "vitest";
+import { quarterBorders } from "@/dashboard/quarter-borders";
+
+describe("quarterBorders", () => {
+  it("draws a cross between four cells", () => {
+    expect([0, 1, 2, 3].map((i) => quarterBorders(i, 4))).toEqual([
+      "border-border border-b sm:border-r",
+      "border-border border-b",
+      "border-border border-b sm:border-b-0 sm:border-r",
+      "border-border sm:border-b-0",
+    ]);
+  });
+
+  it("stretches an odd last cell across the row", () => {
+    expect(quarterBorders(2, 3)).toBe(
+      "border-border sm:border-b-0 sm:col-span-2",
+    );
+    expect(quarterBorders(1, 3)).toBe("border-border border-b");
+  });
+});