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Three fixes from testing the branch. A group class was only listed when its schedule resolved to exact datetimes, which needs a class time *and* a duration — both optional on the offering form, and the schedule note exists precisely so a studio can write "Tuesdays 4:00pm" instead. A class configured that way vanished from the list, which is the one thing this feature must never do. So Offering::sessionStarts() splits "when does it meet" from "how long does it run" (sessionWindows() is that plus the duration, unchanged), and SessionSchedule degrades instead of disappearing: dated rows with an open end when there is no duration, and a single row carrying Offering::scheduleLabel() when there is no time to derive dates from. Only a class whose last day has passed drops out. Deleting a guardian now deletes the children linked to them, releasing each one's lessons and enrolments first. A child account is login-less and exists only so the guardian has somebody to book for; without the guardian nobody can reach it, book for it, or be billed for it, so it was left stranded on the roster still holding slots. A `handled` set makes the re-entrant delete_user each child deletion fires a no-op, and stops a circular link recursing. The upcoming panel never stated its own line-height, so a theme setting line-height: 0 above it — the usual icon-font reset — was inherited straight through. Below 1 that produces both reported symptoms at once: stacked lines overlap, and the status pill's background is shorter than the text in it. Pinned at the same id-level specificity as the rest. Tests: composer test (863), composer lint, composer cs all pass. Co-Authored-By: Claude Opus 5 <[email protected]>