fix(ErpEntityCustomerFiles): remove unnecessary abstract getId() - better uuid comment

src/QUI/ERP/ErpEntityCustomerFiles.php

@@ -14,8 +14,6 @@ trait ErpEntityCustomerFiles
 
     abstract public function getCustomer(): ?ErpUser;
 
-    abstract public function getId(): int;
-
     abstract public function addCustomDataEntry(string $key, mixed $value): void;
 
     abstract public function getCustomDataEntry(string $key): mixed;

src/QUI/ERP/User.php

@@ -26,7 +26,6 @@
  * Class User
  * ERP User, a user object compatible to the QUIQQER User Interface
  *
- * @todo implement UUID
  * @package QUI\ERP
  */
 class User extends QUI\QDOM implements UserInterface
@@ -272,7 +271,7 @@ public static function convertUserDataToErpUser(array $user): User
 
     /**
      * @return int|false
-     * @deprecated
+     * @deprecated use getUUID()
      */
     public function getId(): int|false
     {
@@ -281,7 +280,7 @@ public function getId(): int|false
 
     /**
      * @return string
-     * @deprecated
+     * @deprecated use getUUID()
      */
     public function getUniqueId(): string
     {
@@ -297,7 +296,7 @@ public function getUUID(): string
     }
 
     /**
-     * @return mixed
+     * @return string
      */
     public function getName(): string
     {