Report study progress as points practiced, not points learned

When estimating exam readiness, weight each skill by its average points across past exams and split the totals by status: not started, started, solved with help, solved alone. Report the solved-alone number separately, even when it is zero, because help-assisted coverage overstates what the student can do unaided. Parse the totals from the tracker with a short script rather than adding them by hand, and label any score prediction as a guess with its assumptions stated.