feat: Add VerifiedBadge and online status to user profile header

app/src/main/java/com/rosetta/messenger/database/MessageEntities.kt

@@ -478,6 +478,22 @@ interface DialogDao {
     """)
     suspend fun updateOnlineStatus(account: String, opponentKey: String, isOnline: Int, lastSeen: Long)
     
+    /**
+     * Получить онлайн статус пользователя
+     */
+    @Query("""
+        SELECT is_online, last_seen 
+        FROM dialogs 
+        WHERE account = :account AND opponent_key = :opponentKey
+        LIMIT 1
+    """)
+    fun observeOnlineStatus(account: String, opponentKey: String): Flow<OnlineStatusInfo?>
+    
+    data class OnlineStatusInfo(
+        @ColumnInfo(name = "is_online") val isOnline: Int,
+        @ColumnInfo(name = "last_seen") val lastSeen: Long
+    )
+    
     /**
      * Удалить диалог
      */