(Reuters) – The Russian rouble hovered around the 104 mark to the U.S. dollar most of the trading session in Moscow on Tuesday, lacking momentum for larger moves, while government OFZ bonds stabilised with the help of the central bank. Russia confirmed its ability to service debt by paying a coupon on its Eurobond due in 2029, marking the second successful coupon payout in the past week. At 1453 GMT, the rouble was little changed on the day in light trade near 103.88 against the dollar and was flat at 114.50 versus the euro. The rouble has stabilised after falling to a record low of 120 in Mos…