Showed end time for agent loop and changed message time to show date if not current day (#4503)

Co-authored-by: GitHub Action <action@github.com>

packages/opencode/src/util/locale.ts

@@ -3,9 +3,29 @@ export namespace Locale {
     return str.replace(/\b\w/g, (c) => c.toUpperCase())
   }
 
-  export function time(input: number) {
+  export function time(input: number): string {
     const date = new Date(input)
-    return date.toLocaleTimeString()
+    return date.toLocaleTimeString(undefined, { timeStyle: "short" })
+  }
+
+  export function datetime(input: number): string {
+    const date = new Date(input)
+    const localTime = time(input)
+    const localDate = date.toLocaleDateString()
+    return `${localTime} · ${localDate}`
+  }
+
+  export function todayTimeOrDateTime(input: number): string {
+    const date = new Date(input)
+    const now = new Date()
+    const isToday =
+      date.getFullYear() === now.getFullYear() && date.getMonth() === now.getMonth() && date.getDate() === now.getDate()
+
+    if (isToday) {
+      return time(input)
+    } else {
+      return datetime(input)
+    }
   }
 
   export function number(num: number): string {