fix: resolve RedisCache array offset error and improve discovery diagnostics

- Fix RedisCache driver to handle MGET failures gracefully with fallback
- Add comprehensive discovery context comparison debug tools
- Identify root cause: WEB context discovery missing 166 items vs CLI
- WEB context missing RequestFactory class entirely (52 vs 69 commands)
- Improved exception handling with detailed binding diagnostics

src/Framework/Database/Repository/EntityRepository.php

@@ -39,6 +39,7 @@ abstract class EntityRepository
 
     /**
      * Findet alle Entities
+     * @return array<int, object>
      */
     public function findAll(): array
     {
@@ -47,6 +48,7 @@ abstract class EntityRepository
 
     /**
      * Findet alle Entities (eager loading)
+     * @return array<int, object>
      */
     public function findAllEager(): array
     {
@@ -55,6 +57,9 @@ abstract class EntityRepository
 
     /**
      * Findet Entities nach Kriterien
+     * @param array<string, mixed> $criteria
+     * @param array<string, string>|null $orderBy
+     * @return array<int, object>
      */
     public function findBy(array $criteria, ?array $orderBy = null, ?int $limit = null): array
     {
@@ -63,6 +68,7 @@ abstract class EntityRepository
 
     /**
      * Findet eine Entity nach Kriterien
+     * @param array<string, mixed> $criteria
      */
     public function findOneBy(array $criteria): ?object
     {
@@ -79,6 +85,8 @@ abstract class EntityRepository
 
     /**
      * Speichert mehrere Entities
+     * @param array<int, object> $entities
+     * @return array<int, object>
      */
     public function saveAll(array $entities): array
     {