feat: show fast mode in minimal footer

pi-minimal-footer/status.ts

@@ -0,0 +1,28 @@
+export const FAST_MODE_STATUS_KEY = "codex-fast-mode";
+
+export interface FooterStatusItem {
+  text: string;
+  accent: boolean;
+}
+
+/** Convert Pi extension statuses into compact footer segments. */
+export function collectFooterStatusItems(
+  statuses: ReadonlyMap<string, string>,
+): FooterStatusItem[] {
+  const items: FooterStatusItem[] = [];
+
+  for (const [key, value] of statuses) {
+    if (key === FAST_MODE_STATUS_KEY) {
+      if (value.trim().toLowerCase() === "on") {
+        items.push({ text: "Fast on", accent: true });
+      }
+      continue;
+    }
+
+    if (value.trim()) {
+      items.push({ text: value, accent: false });
+    }
+  }
+
+  return items;
+}