Date formatting cleanup, added utility functions to avoid repetition.

src/utils/date.js

@@ -287,6 +287,37 @@ function lunarPhaseSymbol(date) {
 }
 
 // Exports -----------------------------------------------------------------
+/**
+ * Format date as short localized string (e.g., "Jan 15")
+ */
+function formatDateShort(date) {
+  return date.toLocaleDateString(undefined, { month: 'short', day: 'numeric' })
+    .replace(/, /, ' ')
+}
+
+/**
+ * Format date as long localized string with optional year (e.g., "Mon Jan 15" or "Mon Jan 15, 2025")
+ */
+function formatDateLong(date, includeYear = false) {
+  const opts = {
+    weekday: 'short',
+    month: 'short',
+    day: 'numeric',
+    ...(includeYear ? { year: 'numeric' } : {}),
+  }
+  return date.toLocaleDateString(undefined, opts)
+}
+
+/**
+ * Format date as today string (e.g., "Monday\nJanuary 15")
+ */
+function formatTodayString(date) {
+  const formatted = date
+    .toLocaleDateString(undefined, { weekday: 'long', month: 'long', day: 'numeric' })
+    .replace(/,? /, '\n')
+  return formatted.charAt(0).toUpperCase() + formatted.slice(1)
+}
+
 export {
   // constants
   monthAbbr,
@@ -311,6 +342,9 @@ export {
   reorderByFirstDay,
   getLocalizedMonthName,
   formatDateRange,
+  formatDateShort,
+  formatDateLong,
+  formatTodayString,
   lunarPhaseSymbol,
   // iso helpers re-export
   getISOWeek,