Mirror the medication card's name + cadence + status layout:
- the cadence ("alle 7 Tage") renders as a chip directly to the right of the
metric name via a new MedicationCardHeader nameChip slot, instead of on the
state-badge row below the category;
- the due / overdue status renders as plain text, not a chip;
- the "zuletzt erledigt" line always renders, falling back to an em dash when
there is no last-done value, instead of being hidden.
The green action button is unchanged. Also drop the per-module tour trigger
from this surface (the tour is first-time-only now).
Marc-André Bombeck
8234427a94