fix(inventory): Instant.MIN/MAX, performed_at-Index, batchReference-Naming und -Validierung, Lasttest-Zeiträume

- Instant.MIN/MAX durch separate Repository-Methoden ersetzt (findAllByPerformedAtAfter/Before)
- DB-Index auf performed_at für Zeitraum-Abfragen
- Naming-Konsistenz: findAllByBatchId → findAllByBatchReference im Domain-Repository
- batchReference-Validierung (Blank-Check) mit InvalidBatchReference-Error
- Lasttest: variierende Zeiträume (7–90 Tage) statt statischem 10-Jahres-Fenster

backend/src/main/java/de/effigenix/application/inventory/ListStockMovements.java

@@ -62,7 +62,11 @@ public class ListStockMovements {
         }
 
         if (batchReference != null) {
-            return mapResult(stockMovementRepository.findAllByBatchId(batchReference));
+            if (batchReference.isBlank()) {
+                return Result.failure(new StockMovementError.InvalidBatchReference(
+                        "Batch reference must not be blank"));
+            }
+            return mapResult(stockMovementRepository.findAllByBatchReference(batchReference));
         }
 
         if (movementType != null) {
@@ -81,9 +85,13 @@ public class ListStockMovements {
                 return Result.failure(new StockMovementError.InvalidDateRange(
                         "'from' must not be after 'to'"));
             }
-            Instant effectiveFrom = from != null ? from : Instant.MIN;
-            Instant effectiveTo = to != null ? to : Instant.MAX;
-            return mapResult(stockMovementRepository.findAllByPerformedAtBetween(effectiveFrom, effectiveTo));
+            if (from != null && to != null) {
+                return mapResult(stockMovementRepository.findAllByPerformedAtBetween(from, to));
+            }
+            if (from != null) {
+                return mapResult(stockMovementRepository.findAllByPerformedAtAfter(from));
+            }
+            return mapResult(stockMovementRepository.findAllByPerformedAtBefore(to));
         }
 
         return mapResult(stockMovementRepository.findAll());

backend/src/main/java/de/effigenix/domain/inventory/StockMovementRepository.java

@@ -20,9 +20,13 @@ public interface StockMovementRepository {
 
     Result<RepositoryError, List<StockMovement>> findAllByMovementType(MovementType movementType);
 
-    Result<RepositoryError, List<StockMovement>> findAllByBatchId(String batchId);
+    Result<RepositoryError, List<StockMovement>> findAllByBatchReference(String batchReference);
 
     Result<RepositoryError, List<StockMovement>> findAllByPerformedAtBetween(Instant from, Instant to);
 
+    Result<RepositoryError, List<StockMovement>> findAllByPerformedAtAfter(Instant from);
+
+    Result<RepositoryError, List<StockMovement>> findAllByPerformedAtBefore(Instant to);
+
     Result<RepositoryError, Void> save(StockMovement stockMovement);
 }

backend/src/main/java/de/effigenix/infrastructure/inventory/persistence/repository/JpaStockMovementRepository.java

@@ -95,14 +95,14 @@ public class JpaStockMovementRepository implements StockMovementRepository {
     }
 
     @Override
-    public Result<RepositoryError, List<StockMovement>> findAllByBatchId(String batchId) {
+    public Result<RepositoryError, List<StockMovement>> findAllByBatchReference(String batchReference) {
         try {
-            List<StockMovement> result = jpaRepository.findAllByBatchId(batchId).stream()
+            List<StockMovement> result = jpaRepository.findAllByBatchId(batchReference).stream()
                     .map(mapper::toDomain)
                     .toList();
             return Result.success(result);
         } catch (Exception e) {
-            logger.warn("Database error in findAllByBatchId", e);
+            logger.warn("Database error in findAllByBatchReference", e);
             return Result.failure(new RepositoryError.DatabaseError(e.getMessage()));
         }
     }
@@ -120,6 +120,32 @@ public class JpaStockMovementRepository implements StockMovementRepository {
         }
     }
 
+    @Override
+    public Result<RepositoryError, List<StockMovement>> findAllByPerformedAtAfter(Instant from) {
+        try {
+            List<StockMovement> result = jpaRepository.findAllByPerformedAtGreaterThanEqual(from).stream()
+                    .map(mapper::toDomain)
+                    .toList();
+            return Result.success(result);
+        } catch (Exception e) {
+            logger.warn("Database error in findAllByPerformedAtAfter", e);
+            return Result.failure(new RepositoryError.DatabaseError(e.getMessage()));
+        }
+    }
+
+    @Override
+    public Result<RepositoryError, List<StockMovement>> findAllByPerformedAtBefore(Instant to) {
+        try {
+            List<StockMovement> result = jpaRepository.findAllByPerformedAtLessThanEqual(to).stream()
+                    .map(mapper::toDomain)
+                    .toList();
+            return Result.success(result);
+        } catch (Exception e) {
+            logger.warn("Database error in findAllByPerformedAtBefore", e);
+            return Result.failure(new RepositoryError.DatabaseError(e.getMessage()));
+        }
+    }
+
     @Override
     @Transactional
     public Result<RepositoryError, Void> save(StockMovement stockMovement) {

backend/src/main/java/de/effigenix/infrastructure/inventory/persistence/repository/StockMovementJpaRepository.java

@@ -17,4 +17,8 @@ public interface StockMovementJpaRepository extends JpaRepository<StockMovementE
     List<StockMovementEntity> findAllByBatchId(String batchId);
 
     List<StockMovementEntity> findAllByPerformedAtBetween(Instant from, Instant to);
+
+    List<StockMovementEntity> findAllByPerformedAtGreaterThanEqual(Instant from);
+
+    List<StockMovementEntity> findAllByPerformedAtLessThanEqual(Instant to);
 }

backend/src/main/resources/db/changelog/changes/031-add-performed-at-index-to-stock-movements.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<databaseChangeLog
+        xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
+        http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-latest.xsd">
+
+    <changeSet id="031-add-performed-at-index-to-stock-movements" author="effigenix">
+        <createIndex indexName="idx_stock_movements_performed_at" tableName="stock_movements">
+            <column name="performed_at"/>
+        </createIndex>
+    </changeSet>
+
+</databaseChangeLog>

backend/src/main/resources/db/changelog/db.changelog-master.xml

@@ -35,5 +35,6 @@
     <include file="db/changelog/changes/028-create-stock-movements-table.xml"/>
     <include file="db/changelog/changes/029-seed-stock-movement-permissions.xml"/>
     <include file="db/changelog/changes/030-add-batch-id-index-to-stock-movements.xml"/>
+    <include file="db/changelog/changes/031-add-performed-at-index-to-stock-movements.xml"/>
 
 </databaseChangeLog>