fix: move status filtering server-side in Dashboard search

The Dashboard was fetching 50 results without a status filter and
filtering client-side, causing fewer matches when filtering by error
compared to route-specific pages that filter server-side. Now passes
statusFilters to the OpenSearch query. Backend supports comma-separated
status values for multi-select filters.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

cameleer3-server-app/src/main/java/com/cameleer3/server/app/search/OpenSearchIndex.java

@@ -179,8 +179,20 @@ public class OpenSearchIndex implements SearchIndex {
         }
 
         // Keyword filters (use .keyword sub-field for exact matching on dynamically mapped text fields)
-        if (request.status() != null)
-            filter.add(termQuery("status.keyword", request.status()));
+        if (request.status() != null && !request.status().isBlank()) {
+            String[] statuses = request.status().split(",");
+            if (statuses.length == 1) {
+                filter.add(termQuery("status.keyword", statuses[0].trim()));
+            } else {
+                filter.add(Query.of(q -> q.terms(t -> t
+                        .field("status.keyword")
+                        .terms(tv -> tv.value(
+                                java.util.Arrays.stream(statuses)
+                                        .map(String::trim)
+                                        .map(FieldValue::of)
+                                        .toList())))));
+            }
+        }
         if (request.routeId() != null)
             filter.add(termQuery("route_id.keyword", request.routeId()));
         if (request.agentId() != null)

ui/src/pages/Dashboard/Dashboard.tsx

@@ -213,12 +213,18 @@ export default function Dashboard() {
   // ─── API hooks ───────────────────────────────────────────────────────────
   const { data: stats } = useExecutionStats(timeFrom, timeTo, routeId, appId)
   const { data: timeseries } = useStatsTimeseries(timeFrom, timeTo, routeId, appId)
+  // Convert design-system status filters (lowercase) to API status param (uppercase)
+  const statusParam = statusFilters.size > 0
+    ? [...statusFilters].map(s => s.toUpperCase()).join(',')
+    : undefined
+
   const { data: searchResult } = useSearchExecutions(
     {
       timeFrom,
       timeTo,
       routeId: routeId || undefined,
       application: appId || undefined,
+      status: statusParam,
       sortField,
       sortDir,
       offset: 0,
@@ -230,17 +236,11 @@ export default function Dashboard() {
   const { data: diagram } = useDiagramLayout(detail?.diagramContentHash ?? null)
 
   // ─── Rows ────────────────────────────────────────────────────────────────
-  const allRows: Row[] = useMemo(
+  const rows: Row[] = useMemo(
     () => (searchResult?.data || []).map((e: ExecutionSummary) => ({ ...e, id: e.executionId })),
     [searchResult],
   )
 
-  // Apply global status filters (time filtering is done server-side via timeFrom/timeTo)
-  const rows: Row[] = useMemo(() => {
-    if (statusFilters.size === 0) return allRows
-    return allRows.filter((r) => statusFilters.has(r.status.toLowerCase() as any))
-  }, [allRows, statusFilters])
-
   // ─── KPI items ───────────────────────────────────────────────────────────
   const totalCount = stats?.totalCount ?? 0
   const failedCount = stats?.failedCount ?? 0