fix: KPI card counts match feed — exclusive buckets + filter reset on click

- reminderService: dueThisWeek/dueThisMonth use exclusive day ranges (1-7,
  8-30) matching getHorizon() buckets; schattenmarktReadyCount counts by
  type=SCHATTENMARKT_RELEASE (same criteria as the feed filter)
- ReminderKpiBar: clicking a horizon card resets filterType to ALL;
  clicking Pre-Market card resets filterHorizon to ALL — ensures the number
  shown on the card always equals the number of rows displayed below

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

src/components/supply/ReminderKpiBar.tsx

@@ -75,11 +75,21 @@ export function ReminderKpiBar() {
   )
 
   function toggleHorizon(h: FilterHorizon) {
-    setFilterHorizon(filterHorizon === h ? 'ALL' : h)
+    if (filterHorizon === h) {
+      setFilterHorizon('ALL')
+    } else {
+      setFilterHorizon(h)
+      setFilterType('ALL')  // clear type filter so count matches
+    }
   }
 
   function togglePreMarket() {
-    setFilterType(filterType === ReminderType.SCHATTENMARKT_RELEASE ? 'ALL' : ReminderType.SCHATTENMARKT_RELEASE)
+    if (filterType === ReminderType.SCHATTENMARKT_RELEASE) {
+      setFilterType('ALL')
+    } else {
+      setFilterType(ReminderType.SCHATTENMARKT_RELEASE)
+      setFilterHorizon('ALL')  // clear horizon filter so count matches
+    }
   }
 
   if (isLoading) {