docs(medications): correct the GLP-1 card equal-height comment

The reserved-slot comment claimed the compliance bars and action row
align "row-for-row across the grid" with a generic sibling. That
overstates it: the GLP-1-only rotation-hint block sits between the
reserved slot and the compliance bars, so the bars are pushed down by
its height and do not share a Y with a generic card's bars. What the
layout actually guarantees is equal card height and a shared bottom
action baseline (`h-full` + `mt-auto`); only the header, the reserved
slot, and the pinned action row align across a mixed-variant row.
Reword the comment to claim exactly that.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
(cherry picked from commit 7320c8b1b9f704d22eaba10be42a560594a5ca11)

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

@@ -422,9 +422,14 @@ export function Glp1MedicationCard({
 
         {/* Injection state — last + next. The reserved min-height keeps a
             card whose last-injection line is absent the same vertical
-            footprint as one that renders both lines, so the compliance bars
-            and action row below align row-for-row across the grid — matching
-            the generic medication card's reserved last/next slot. */}
+            footprint as one that renders both lines, matching the generic
+            medication card's reserved last/next slot. This — together with
+            `h-full` + `mt-auto` — equalises the card height and pins a
+            shared bottom action baseline across the grid row. Note it does
+            NOT align the compliance bars row-for-row with a generic
+            sibling: the GLP-1-only rotation-hint block below pushes the
+            bars down by its own height, so only the header, the reserved
+            slot, and the pinned action row share a Y. */}
         <div className="min-h-[2.75rem] space-y-1 text-sm">
           {medication.lastTakenAt && (
             <p className="text-muted-foreground">