feat(main): 홈 대화 탭을 추가한다

SodaLive/Sources/Common/DateParser.swift

@@ -47,6 +47,44 @@ enum DateParser {
 
         return I18n.Time.daysAgo(max(1, Int(interval / 86_400)))
     }
+
+    static func chatListDateText(fromUTC text: String, fallback: String, now: Date = Date()) -> String {
+        guard let date = parse(text) else {
+            return fallback
+        }
+
+        let interval = max(0, now.timeIntervalSince(date))
+        if interval < 60 {
+            return I18n.Time.justNow
+        }
+
+        if interval < 3600 {
+            return I18n.Time.minutesAgo(max(1, Int(interval / 60)))
+        }
+
+        if interval < 86_400 {
+            return I18n.Time.hoursAgo(max(1, Int(interval / 3600)))
+        }
+
+        if interval < 604_800 {
+            return I18n.Time.daysAgo(max(1, Int(interval / 86_400)))
+        }
+
+        let calendar = Calendar.current
+        if calendar.component(.year, from: date) == calendar.component(.year, from: now) {
+            let formatter = DateFormatter()
+            formatter.locale = Locale(identifier: LanguageHeaderProvider.current)
+            formatter.timeZone = calendar.timeZone
+            formatter.dateFormat = I18n.MainChat.monthDayDateFormat
+            return formatter.string(from: date)
+        }
+
+        let formatter = DateFormatter()
+        formatter.locale = Locale(identifier: "en_US_POSIX")
+        formatter.timeZone = calendar.timeZone
+        formatter.dateFormat = "yyyy.MM.dd"
+        return formatter.string(from: date)
+    }
     
     // 시도 순서: ISO8601(소수초 포함) → ISO8601 → RFC3339 유사 → 공백 구분 기본
     private static let parsers: [(String) -> Date?] = [