Use timeAgo from @vrcnext/plugin-api

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

src/history.ts

@@ -67,16 +67,3 @@ export function rejoinIn(
   const last = earlier[0];
   return { seenHere: last !== undefined, lastAt: last?.timestamp };
 }
-
-/** `3 minutes ago`, `2 hours ago`, `5 days ago`. */
-export function timeAgo(iso: string, now = Date.now()): string {
-  const ms = now - Date.parse(iso);
-  if (!Number.isFinite(ms) || ms < 0) return 'just now';
-  const minutes = Math.floor(ms / 60_000);
-  if (minutes < 1) return 'just now';
-  if (minutes < 60) return `${String(minutes)} minute${minutes === 1 ? '' : 's'} ago`;
-  const hours = Math.floor(minutes / 60);
-  if (hours < 48) return `${String(hours)} hour${hours === 1 ? '' : 's'} ago`;
-  const days = Math.floor(hours / 24);
-  return `${String(days)} day${days === 1 ? '' : 's'} ago`;
-}

src/notify.ts

@@ -13,7 +13,9 @@
 import type { PluginContext, SettingsValues } from '@vrcnext/plugin-api';
 
 import type { Facts, Joiner } from './collector.js';
-import { timeAgo, type Rejoin } from './history.js';
+import { timeAgo } from '@vrcnext/plugin-api';
+
+import type { Rejoin } from './history.js';
 import type { Settings } from './settings.js';
 import type { CurrentInstance } from './vrcnext-data.js';