feat(medications): show per-slot units on both med cards

Surface the per-schedule units-per-dose beside the per-slot dose the
card already prints, identically on the standard and the GLP-1 card,
so a split plan reads at a glance which time takes a half. Muted
addendum, no width movement.

src/components/medications/glp1-medication-card.tsx

@@ -23,6 +23,7 @@ import { apiGet, apiPost } from "@/lib/api/api-fetch";
 import { formatDateTime, formatTime } from "@/lib/format";
 import { getMedicationCategoryLabel } from "@/lib/medications/category-label";
 import { formatDose } from "@/lib/medications/format-dose";
+import { formatUnitsPerDose } from "@/components/medications/units-per-dose";
 import { getDayOfWeekInTz } from "@/lib/tz/local-day";
 import { type InjectionSiteKey } from "@/lib/medications/injection-sites";
 import { LogInjectionSiteDialog } from "@/components/medications/log-injection-site-dialog";
@@ -72,6 +73,8 @@ interface ScheduleLite {
   /** Cadence fields the supply-runway estimate reads (v1.16.11). */
   rrule?: string | null;
   rollingIntervalDays?: number | null;
+  /** #219 — per-schedule units consumed per dose. NULL inherits the med level. */
+  unitsPerDose?: number | null;
 }
 
 interface DoseChangeLite {
@@ -483,6 +486,16 @@ export function Glp1MedicationCard({
               — {formatDose(schedule.dose, t)}
             </span>
           )}
+          {typeof schedule?.unitsPerDose === "number" &&
+            schedule.unitsPerDose > 0 && (
+              <span className="text-muted-foreground hidden sm:inline">
+                {" "}
+                ·{" "}
+                {t("medications.perSlotUnits", {
+                  units: formatUnitsPerDose(schedule.unitsPerDose),
+                })}
+              </span>
+            )}
         </>
       )
     ) : null;

src/components/medications/medication-card.tsx

@@ -13,6 +13,7 @@ import { formatDateTime, formatTime } from "@/lib/format";
 import { getDateTimeFormat } from "@/lib/intl/formatter-cache";
 import { getMedicationCategoryLabel } from "@/lib/medications/category-label";
 import { formatDose } from "@/lib/medications/format-dose";
+import { formatUnitsPerDose } from "@/components/medications/units-per-dose";
 import { reduceCurrentWindowStatus } from "@/lib/medications/window-status";
 import { resolveNextDueDayLabel } from "@/lib/medications/next-due-day-label";
 import { resolveDisplayedSlotInstant } from "@/components/medications/card-parts/displayed-slot-instant";
@@ -52,6 +53,8 @@ interface Schedule {
   /** Cadence fields the supply-runway estimate reads (v1.16.11). */
   rrule?: string | null;
   rollingIntervalDays?: number | null;
+  /** #219 — per-schedule units consumed per dose. NULL inherits the med level. */
+  unitsPerDose?: number | null;
 }
 
 interface Medication {
@@ -448,6 +451,15 @@ export function MedicationCard({
                   — {formatDose(s.dose, t)}
                 </span>
               )}
+              {typeof s.unitsPerDose === "number" && s.unitsPerDose > 0 && (
+                <span className="text-muted-foreground hidden sm:inline">
+                  {" "}
+                  ·{" "}
+                  {t("medications.perSlotUnits", {
+                    units: formatUnitsPerDose(s.unitsPerDose),
+                  })}
+                </span>
+              )}
             </>
           );
         })()