Strongest lineup and training attendance

The starting lineup is now solved in one optimal calculation instead of slot by slot: the combination with the best overall fit across the formation wins. Strong defenders end up at the back, even when another strong player would have claimed a spot first.

New: training attendance over the last 4 weeks counts. From 80% there is no effect (missing one session is fine), below 50% you do not start and get less playing time, and with no training at all at most half the playing time. Those players sit outside the equal-playing-time rule, so the minutes of players who do train stay exactly equal. You can reset it per match with one tap (illness, holidays).

Also: a warning when more players are locked to a position than the formation has slots, plus extra 8-a-side formations (2-1-2-2 and 3-1-2-1).