Make the year view readable at a glance

Three things worked against the year grid. The page inherited PaperMod's
720px column, so twelve months across three columns left day cells too
narrow for any label; the calendar layout now runs to 1100px, which the
nine-column deadline table below the grid wants anyway.

Each cell was also short enough to fit a single deadline, collapsing the
days that carry both an abstract and a paper into a '+2 more' link. The
view hardcodes dayMaxEvents, so the height comes from aspectRatio: month
tables are width / ratio over six rows, and 1.1 leaves about 50px a week.

Finally, 'OSDI — abstract deadline' never fit a day cell and rendered as
a cropped fragment. The year view keeps the venue, which is the part that
identifies the dot, and leaves the rest to the hover text and the month
and list views.

'+N more' still appears when a day carries three deadlines, and was drawn
with the library's default event border, an unmapped blue that read as a
stray button; it becomes quiet text, and the popover it opens picks up
the calendar's own card treatment.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

site/assets/js/calendar.js

@@ -24,7 +24,26 @@ document.addEventListener('DOMContentLoaded', function () {
       multiMonthYear: {
         // Dots keep the year grid readable when a day holds several deadlines.
         eventDisplay: 'list-item',
-        multiMonthMinWidth: 260
+        multiMonthMinWidth: 260,
+        // The view hardcodes dayMaxEvents to "fit the cell", so the only way to
+        // show more than one deadline per day is to make the weeks taller. Month
+        // table height is width / aspectRatio over six rows: at three columns
+        // that leaves ~50px a week, enough for the day number plus the two
+        // deadlines a day carries when an abstract and a paper share a date.
+        aspectRatio: 1.1,
+        // A day cell in the year grid is ~50px wide, so the full
+        // "OSDI — abstract deadline" title only ever renders as a cropped
+        // fragment. Keep the venue, which is the part that identifies the dot,
+        // and leave the rest to the hover text and the month and list views.
+        eventContent: function (arg) {
+          var dot = document.createElement('div')
+          dot.className = 'fc-daygrid-event-dot'
+          dot.style.borderColor = arg.borderColor || arg.backgroundColor
+          var title = document.createElement('div')
+          title.className = 'fc-event-title'
+          title.textContent = arg.event.title.split(' — ')[0]
+          return { domNodes: [dot, title] }
+        }
       }
     },
     eventClick: function (info) {