feat(status): improve status output

src/commands/status-all/gateway.ts

@@ -0,0 +1,33 @@
+import fs from "node:fs/promises";
+
+export async function readFileTailLines(
+  filePath: string,
+  maxLines: number,
+): Promise<string[]> {
+  const raw = await fs.readFile(filePath, "utf8").catch(() => "");
+  if (!raw.trim()) return [];
+  const lines = raw.replace(/\r/g, "").split("\n");
+  const out = lines.slice(Math.max(0, lines.length - maxLines));
+  return out
+    .map((line) => line.trimEnd())
+    .filter((line) => line.trim().length > 0);
+}
+
+export function pickGatewaySelfPresence(presence: unknown): {
+  host?: string;
+  ip?: string;
+  version?: string;
+  platform?: string;
+} | null {
+  if (!Array.isArray(presence)) return null;
+  const entries = presence as Array<Record<string, unknown>>;
+  const self =
+    entries.find((e) => e.mode === "gateway" && e.reason === "self") ?? null;
+  if (!self) return null;
+  return {
+    host: typeof self.host === "string" ? self.host : undefined,
+    ip: typeof self.ip === "string" ? self.ip : undefined,
+    version: typeof self.version === "string" ? self.version : undefined,
+    platform: typeof self.platform === "string" ? self.platform : undefined,
+  };
+}