Fix PHPStan type hints and code style

- Add type hints for enum arrays in RequestParameter and EndpointParameter
- Add type hints for groups array in SymfonyValidator
- Fix return type in ArrayEntity::getData()
- Fix EntityAdapter spacing issue

Author: claude

src/Core/Annotation/Controller/RequestParameter.php

@@ -31,8 +31,12 @@ class RequestParameter
 
 	private bool $allowEmpty;
 
+	/** @var list<string|int>|null */
 	private ?array $enum;
 
+	/**
+	 * @param list<string|int>|null $enum
+	 */
 	public function __construct(
 		string $name,
 		string $type,
@@ -101,6 +105,9 @@ public function isAllowEmpty(): bool
 		return $this->allowEmpty;
 	}
 
+	/**
+	 * @return list<string|int>|null
+	 */
 	public function getEnum(): ?array
 	{
 		return $this->enum;

src/Core/Mapping/Validator/SymfonyValidator.php

@@ -21,6 +21,7 @@ class SymfonyValidator implements IEntityValidator
 
 	private ?string $translationDomain = null;
 
+	/** @var list<string>|null */
 	private ?array $groups = null;
 
 	public function __construct(?Reader $reader = null)
@@ -44,6 +45,9 @@ public function setTranslationDomain(string $translationDomain): void
 		$this->translationDomain = $translationDomain;
 	}
 
+	/**
+	 * @param list<string> $groups
+	 */
 	public function setGroups(array $groups): void
 	{
 		$this->groups = $groups;

src/Core/Schema/EndpointParameter.php

@@ -47,6 +47,7 @@ class EndpointParameter
 
 	private bool $allowEmpty = false;
 
+	/** @var list<string|int>|null */
 	private ?array $enum = null;
 
 	public function __construct(string $name, string $type = self::TYPE_STRING)
@@ -134,11 +135,17 @@ public function setAllowEmpty(bool $allowEmpty): void
 		$this->allowEmpty = $allowEmpty;
 	}
 
+	/**
+	 * @return list<string|int>|null
+	 */
 	public function getEnum(): ?array
 	{
 		return $this->enum;
 	}
 
+	/**
+	 * @param list<string|int>|null $enum
+	 */
 	public function setEnum(?array $enum): void
 	{
 		$this->enum = $enum;

src/Negotiation/Http/ArrayEntity.php

@@ -23,9 +23,9 @@ public function __construct(array $data)
 
 	/**
 	 * @param mixed[] $data
-	 * @return static
+	 * @phpstan-return static<int|string>
 	 */
-	public static function from(array $data): self
+	public static function from(array $data): static
 	{
 		return new static($data);
 	}

src/OpenApi/SchemaDefinition/Entity/EntityAdapter.php

@@ -147,6 +147,7 @@ protected function getProperties(string $type): array
 			if ($propertyType === $type) {
 				$propertyType = 'object';
 			}
+
 			if (str_ends_with($propertyType, '[]')) {
 				$subType = Strings::replace($propertyType, '#\\[\\]#', '');