polish: taller week calendar cells with more padding around pills

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

components/WeekCalendar.tsx

@@ -48,7 +48,7 @@ function DayCell({
     verticalAlign: "middle",
     borderBottom: "1px solid var(--color-border)",
     borderLeft: "1px solid var(--color-border)",
-    height: 56,
+    height: 72,
     background: isWeekend ? "var(--color-weekend-header)" : "transparent",
     transition: "background 120ms ease",
   };
@@ -71,7 +71,7 @@ function DayCell({
 
   if (dayData.specialType === "passholder_preview") {
     return (
-      <td style={{ ...base, padding: 4 }}>
+      <td style={{ ...base, padding: 6 }}>
         <div style={{
           background: "var(--color-ph-bg)",
           border: "1px solid var(--color-ph-border)",