Fix TimeoutAttribute not being applied to non-test hooks

The TimeoutAttribute on [Before(Assembly)], [Before(Class)], [Before(TestSession)],
and [Before(TestDiscovery)] hooks was being ignored because ProcessHookRegistrationAsync
was not being called for these hooks. This commit:

- Adds async versions of hook delegate creation methods that call ProcessHookRegistrationAsync
- Updates InitializeAsync to await the async hook building methods
- Converts CollectBeforeAssemblyHooksAsync, CollectAfterAssemblyHooksAsync,
  CollectBeforeClassHooksAsync, and CollectAfterClassHooksAsync to properly
  process hook registration events
- Adds HookTimeoutTests to verify the fix works for class and assembly hooks

Co-authored-by: thomhurst <30480171+thomhurst@users.noreply.github.com>

Author: Copilot

TUnit.Engine.Tests/HookTimeoutTests.cs

@@ -0,0 +1,31 @@
+using Shouldly;
+using TUnit.Engine.Tests.Enums;
+
+namespace TUnit.Engine.Tests;
+
+public class HookTimeoutTests(TestMode testMode) : InvokableTestBase(testMode)
+{
+    public async Task ClassHook_WithTimeout_ShouldFail()
+    {
+        await RunTestsWithFilter(
+            "/*/*/ClassHookTimeoutTests/*",
+            [
+                result => result.ResultSummary.Outcome.ShouldBe("Failed"),
+                result => result.ResultSummary.Counters.Total.ShouldBe(1),
+                result => result.ResultSummary.Counters.Passed.ShouldBe(0),
+                result => result.ResultSummary.Counters.Failed.ShouldBe(1),
+            ]);
+    }
+
+    public async Task AssemblyHook_WithTimeout_ShouldPass()
+    {
+        await RunTestsWithFilter(
+            "/*/*/AssemblyHookTimeoutPassTests/*",
+            [
+                result => result.ResultSummary.Outcome.ShouldBe("Completed"),
+                result => result.ResultSummary.Counters.Total.ShouldBe(1),
+                result => result.ResultSummary.Counters.Passed.ShouldBe(1),
+                result => result.ResultSummary.Counters.Failed.ShouldBe(0),
+            ]);
+    }
+}