Collect dependencies defined in property hooks

Add support for collecting dependencies from PHP 8.4 property hooks:
- Handle typed parameters in set hooks (e.g., set(MyClass $value))
- Dependencies from expressions within hook bodies (new, static calls, etc.)
  are already collected by the AST traverser

Fixes #515

Author: claude

src/Analyzer/FileVisitor.php

@@ -67,6 +67,9 @@ public function enterNode(Node $node): void
 
         // handles attribute definition like #[MyAttribute]
         $this->handleAttributeNode($node);
+
+        // handles property hooks like public string $name { get => ...; set { ... } }
+        $this->handlePropertyHookNode($node);
     }
 
     public function getClassDescriptions(): array
@@ -349,4 +352,16 @@ private function addParamDependency(Node\Param $node): void
         $this->classDescriptionBuilder
             ->addDependency(new ClassDependency($type->toString(), $node->getLine()));
     }
+
+    private function handlePropertyHookNode(Node $node): void
+    {
+        if (!($node instanceof Node\PropertyHook)) {
+            return;
+        }
+
+        // Handle parameters in set hooks (e.g., set(MyClass $value) { ... })
+        foreach ($node->params as $param) {
+            $this->addParamDependency($param);
+        }
+    }
 }

tests/Unit/Analyzer/FileParser/CanParsePropertyHooksTest.php

@@ -40,4 +40,75 @@ public function __construct(string $firstName, string $lastName) {
 
         self::assertInstanceOf(ClassDescription::class, $cd[0]);
     }
+
+    public function test_it_collects_dependencies_from_property_hooks(): void
+    {
+        $code = <<< 'EOF'
+        <?php
+        namespace App\Foo;
+
+        use App\Services\Formatter;
+        use App\Services\Validator;
+        use App\Services\Logger;
+
+        class User {
+            public string $name {
+                get {
+                    $formatter = new Formatter();
+                    return $formatter->format($this->name);
+                }
+                set {
+                    $validator = new Validator();
+                    $validator->validate($value);
+                    $this->name = $value;
+                    Logger::log('Name set');
+                }
+            }
+        }
+        EOF;
+
+        $fp = FileParserFactory::forPhpVersion(TargetPhpVersion::PHP_8_4);
+        $fp->parse($code, 'relativePathName');
+
+        $cd = $fp->getClassDescriptions();
+
+        self::assertInstanceOf(ClassDescription::class, $cd[0]);
+
+        $dependencies = $cd[0]->getDependencies();
+        $dependencyNames = array_map(fn ($dep) => $dep->getFQCN()->toString(), $dependencies);
+
+        self::assertContains('App\Services\Formatter', $dependencyNames);
+        self::assertContains('App\Services\Validator', $dependencyNames);
+        self::assertContains('App\Services\Logger', $dependencyNames);
+    }
+
+    public function test_it_collects_dependencies_from_property_hook_parameters(): void
+    {
+        $code = <<< 'EOF'
+        <?php
+        namespace App\Foo;
+
+        use App\ValueObjects\Name;
+
+        class User {
+            public string $name {
+                set (Name $name) {
+                    $this->name = $name->toString();
+                }
+            }
+        }
+        EOF;
+
+        $fp = FileParserFactory::forPhpVersion(TargetPhpVersion::PHP_8_4);
+        $fp->parse($code, 'relativePathName');
+
+        $cd = $fp->getClassDescriptions();
+
+        self::assertInstanceOf(ClassDescription::class, $cd[0]);
+
+        $dependencies = $cd[0]->getDependencies();
+        $dependencyNames = array_map(fn ($dep) => $dep->getFQCN()->toString(), $dependencies);
+
+        self::assertContains('App\ValueObjects\Name', $dependencyNames);
+    }
 }