feat: show fast mode in minimal footer

pi-minimal-footer/test/status.test.ts

@@ -0,0 +1,29 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+
+import { collectFooterStatusItems, FAST_MODE_STATUS_KEY } from "../status.ts";
+
+test("renders enabled Codex Fast mode as an explicit accented segment", () => {
+  const items = collectFooterStatusItems(new Map([[FAST_MODE_STATUS_KEY, "on"]]));
+
+  assert.deepEqual(items, [{ text: "Fast on", accent: true }]);
+});
+
+test("hides disabled Codex Fast mode", () => {
+  const items = collectFooterStatusItems(new Map([[FAST_MODE_STATUS_KEY, "off"]]));
+
+  assert.deepEqual(items, []);
+});
+
+test("preserves other non-empty extension statuses", () => {
+  const items = collectFooterStatusItems(new Map([
+    ["one", "Ready"],
+    ["empty", "  "],
+    ["two", "2 tasks"],
+  ]));
+
+  assert.deepEqual(items, [
+    { text: "Ready", accent: false },
+    { text: "2 tasks", accent: false },
+  ]);
+});