* TSX ends up 45.31 points, or 0.4 percent, to 12,801.23 * Seven of 10 main index sectors advance * Manulife up 2.0 percent after price target increased By Claire Sibonney TORONTO, Feb 8 (Reuters) - Canadian stocks hit a one-week high on Friday, led by financial and energy shares, as positive economic data from China, Europe and the United States offset weak domestic numbers and as Manulife Financial Corp rose on reaction to its results. China's exports and imports surged