chore: remove legacy ParallelTypeRenderer and dependencies

Remove subprocess-based parallel rendering code that was replaced by
the pcntl_fork-based ForkingRenderer.

Deleted files:
- ParallelTypeRenderer.php (subprocess spawning approach)
- WorkerProcess.php (subprocess wrapper)
- DocumentBatcher.php (document partitioning)
- StaticDocumentIterator.php (iterator wrapper)

Updated service configuration to remove dead references.

Author: CybotTM

packages/typo3-guides-extension/resources/config/typo3-guides.php

@@ -21,10 +21,8 @@
 use T3Docs\GuidesExtension\EventListener\ProfilingEventListener;
 use T3Docs\GuidesExtension\Renderer\IncrementalTypeRenderer;
 use T3Docs\GuidesExtension\Parser\ParallelParseDirectoryHandler;
-use T3Docs\GuidesExtension\Renderer\Parallel\DocumentBatcher;
 use T3Docs\GuidesExtension\Renderer\Parallel\DocumentNavigationProvider;
 use T3Docs\GuidesExtension\Renderer\Parallel\ForkingRenderer;
-use T3Docs\GuidesExtension\Renderer\Parallel\ParallelTypeRenderer;
 use T3Docs\GuidesExtension\Compiler\ParallelCompileDocumentsHandler;
 use T3Docs\GuidesExtension\Settings\ParallelSettings;
 use T3Docs\Typo3DocsTheme\Inventory\Typo3InventoryRepository;
@@ -129,14 +127,6 @@
         // Singleton that stores pre-computed prev/next relationships for use in child processes
         ->set(DocumentNavigationProvider::class)
 
-        // Parallel Rendering - Document batching and process management
-        ->set(DocumentBatcher::class)
-        ->set(ParallelTypeRenderer::class)
-            ->arg('$sequentialRenderer', service(IncrementalTypeRenderer::class))
-            ->arg('$cacheListener', service(IncrementalCacheListener::class))
-            ->arg('$batcher', service(DocumentBatcher::class))
-            ->arg('$logger', service('Psr\Log\LoggerInterface')->nullOnInvalid())
-
         // Parallel Rendering - pcntl_fork based renderer for cold builds
         // Replaces the default HTML TypeRenderer for parallel rendering
         ->set(ForkingRenderer::class)