Premiere verison route admin operationnelle

backend/sql/seed_matches.sql

@@ -0,0 +1,6 @@
+-- Example seeds (adjust IDs to your existing rows)
+INSERT INTO matches (tournament_id, player_a_id, player_b_id, court, start_time)
+VALUES
+  (1, NULL, NULL, 'Court 1', now() + interval '1 hour'),
+  (1, NULL, NULL, 'Court 2', now() + interval '2 hour')
+ON CONFLICT DO NOTHING;