Add customer search and navigation updates

backend/src/main/java/de/svencarstensen/muh/repository/SampleRepository.java

@@ -16,6 +16,8 @@ public interface SampleRepository extends MongoRepository<Sample, String> {
 
     List<Sample> findByFarmerBusinessKeyOrderByCreatedAtDesc(String farmerBusinessKey);
 
+    List<Sample> findByCreatedAtBetweenOrderByCreatedAtDesc(LocalDateTime start, LocalDateTime end);
+
     List<Sample> findByCompletedAtBetweenOrderByCompletedAtDesc(LocalDateTime start, LocalDateTime end);
 
     List<Sample> findByCompletedAtNotNullOrderByCompletedAtDesc();

backend/src/main/java/de/svencarstensen/muh/service/PortalService.java

@@ -55,6 +55,13 @@ public class PortalService {
         );
     }
 
+    public List<PortalSampleRow> searchSamplesByCreatedDate(LocalDate date) {
+        return sampleService.samplesByCreatedDate(date).stream()
+                .map(this::toPortalRow)
+                .sorted(Comparator.comparing(PortalSampleRow::createdAt).reversed())
+                .toList();
+    }
+
     private boolean cowMatches(Sample sample, String cowQuery) {
         String query = cowQuery.toLowerCase(Locale.ROOT);
         return (sample.cowNumber() != null && sample.cowNumber().toLowerCase(Locale.ROOT).contains(query))

backend/src/main/java/de/svencarstensen/muh/service/SampleService.java

@@ -456,6 +456,10 @@ public class SampleService {
         return sampleRepository.findByFarmerBusinessKeyOrderByCreatedAtDesc(businessKey);
     }
 
+    public List<Sample> samplesByCreatedDate(LocalDate date) {
+        return sampleRepository.findByCreatedAtBetweenOrderByCreatedAtDesc(date.atStartOfDay(), date.plusDays(1).atStartOfDay());
+    }
+
     public List<Sample> samplesByDate(LocalDate date) {
         return sampleRepository.findByCompletedAtBetweenOrderByCompletedAtDesc(date.atStartOfDay(), date.plusDays(1).atStartOfDay());
     }

backend/src/main/java/de/svencarstensen/muh/web/PortalController.java

@@ -49,6 +49,11 @@ public class PortalController {
         return reportService.reportCandidates();
     }
 
+    @GetMapping("/search/by-date")
+    public List<PortalService.PortalSampleRow> searchByDate(@RequestParam LocalDate date) {
+        return portalService.searchSamplesByCreatedDate(date);
+    }
+
     @PostMapping("/reports/send")
     public ReportService.DispatchResult send(
             @RequestHeader(value = "X-MUH-Actor-Id", required = false) String actorId,