feat: Integrate forum layout support across various components and enhance room handling logic

src/app/features/forum/forumTime.ts

@@ -0,0 +1,40 @@
+/** matrixsso-style relative time (e.g. "4m", "3h", "now"). */
+export function formatForumTimeAgo(timestamp: number): string {
+  const ms = timestamp;
+  if (!Number.isFinite(ms) || ms <= 0) {
+    return 'now';
+  }
+
+  const seconds = Math.floor((Date.now() - ms) / 1000);
+  if (seconds < 45) {
+    return 'now';
+  }
+
+  const minutes = Math.floor(seconds / 60);
+  if (minutes < 60) {
+    return `${minutes}m`;
+  }
+
+  const hours = Math.floor(minutes / 60);
+  if (hours < 24) {
+    return `${hours}h`;
+  }
+
+  const days = Math.floor(hours / 24);
+  if (days < 7) {
+    return `${days}d`;
+  }
+
+  const weeks = Math.floor(days / 7);
+  if (weeks < 5) {
+    return `${weeks}w`;
+  }
+
+  const months = Math.floor(days / 30);
+  if (months < 12) {
+    return `${months}mo`;
+  }
+
+  const years = Math.floor(days / 365);
+  return `${years}y`;
+}