Improved typing and phpdoc type annotations

src/Entity/Parts/Part.php

@@ -144,7 +144,7 @@ class Part extends AttachmentContainingDBElement
     }
 
     #[Assert\Callback]
-    public function validate(ExecutionContextInterface $context, $payload)
+    public function validate(ExecutionContextInterface $context, $payload): void
     {
         //Ensure that the part name fullfills the regex of the category
         if ($this->category instanceof Category) {

src/Entity/Parts/PartLot.php

@@ -322,7 +322,7 @@ class PartLot extends AbstractDBElement implements TimeStampableInterface, Named
     }
 
     #[Assert\Callback]
-    public function validate(ExecutionContextInterface $context, $payload)
+    public function validate(ExecutionContextInterface $context, $payload): void
     {
         //Ensure that the owner is not the anonymous user
         if ($this->getOwner() && $this->getOwner()->isAnonymousUser()) {

src/Entity/Parts/PartTraits/InstockTrait.php

@@ -63,8 +63,7 @@ trait InstockTrait
 
     /**
      * Get all part lots where this part is stored.
-     *
-     * @return PartLot[]|Collection
+     * @phpstan-return Collection<int, PartLot>
      */
     public function getPartLots(): Collection
     {

src/Entity/Parts/PartTraits/OrderTrait.php

@@ -36,7 +36,7 @@ use Doctrine\ORM\Mapping as ORM;
 trait OrderTrait
 {
     /**
-     * @var Orderdetail[]|Collection the details about how and where you can order this part
+     * @var Collection<int, Orderdetail> the details about how and where you can order this part
      */
     #[Assert\Valid]
     #[Groups(['extended', 'full', 'import'])]
@@ -66,7 +66,7 @@ trait OrderTrait
     /**
      * Get the selected order orderdetails of this part.
      *
-     * @return Orderdetail the selected order orderdetails
+     * @return Orderdetail|null the selected order orderdetails
      */
     public function getOrderOrderdetails(): ?Orderdetail
     {

src/Entity/Parts/PartTraits/ProjectTrait.php

@@ -29,8 +29,9 @@ trait ProjectTrait
     protected ?Project $built_project = null;
 
     /**
-     * Returns all ProjectBOMEntries that use this part.
-     * @return Collection<int, ProjectBOMEntry>|ProjectBOMEntry[]
+     *  Returns all ProjectBOMEntries that use this part.
+     *
+     * @phpstan-return Collection<int, ProjectBOMEntry>
      */
     public function getProjectBomEntries(): Collection
     {