chore: extract string prompt upgrade

src/SingletonProvider/LlmChatMessageRendererProvider.php

+<?php
+
+declare(strict_types=1);
+
+namespace Distantmagic\Resonance\SingletonProvider;
+
+use Distantmagic\Resonance\Attribute\Singleton;
+use Distantmagic\Resonance\LlamaCppConfiguration;
+use Distantmagic\Resonance\LlmChatMessageRenderer\ChatMLMessageRenderer;
+use Distantmagic\Resonance\LlmChatMessageRenderer\MistralInstructMessageRenderer;
+use Distantmagic\Resonance\LlmChatMessageRendererInterface;
+use Distantmagic\Resonance\LlmChatTemplateType;
+use Distantmagic\Resonance\PHPProjectFiles;
+use Distantmagic\Resonance\SingletonContainer;
+use Distantmagic\Resonance\SingletonProvider;
+use Nette\PhpGenerator\Printer;
+use RuntimeException;
+
+/**
+ * @template-extends SingletonProvider<Printer>
+ */
+#[Singleton(provides: LlmChatMessageRendererInterface::class)]
+final readonly class LlmChatMessageRendererProvider extends SingletonProvider
+{
+    public function __construct(
+        private ChatMLMessageRenderer $chatMLMessageRenderer,
+        private LlamaCppConfiguration $llamaCppConfiguration,
+        private MistralInstructMessageRenderer $mistralInstructMessageRenderer,
+    ) {}
+
+    public function provide(SingletonContainer $singletons, PHPProjectFiles $phpProjectFiles): LlmChatMessageRendererInterface
+    {
+        return match ($this->llamaCppConfiguration->llmChatTemplate) {
+            LlmChatTemplateType::ChatML => $this->chatMLMessageRenderer,
+            LlmChatTemplateType::MistralInstruct => $this->mistralInstructMessageRenderer,
+            default => throw new RuntimeException('Unsupported llm chat message format: '.$this->llamaCppConfiguration->llmChatTemplate->value),
+        };
+    }
+}