Congratulations for your victory!
And thanks for the hard work you did for us! "Dieu se rit des hommes qui se plaignent des conséquences alors qu'ils en chérissent les causes" Jacques-Bénigne Bossuet
Ditto in spades.
Melanchthon: Congratulations for your victory!
"Congratulations" < congrātulārī : com-, together + grātulārī, to rejoice
No better word for the occasion. Truth unfolds in time through a communal process.