feat: observe llama.cpp progress

Makefile

composer.json

composer.lock

...ocs/features/observability/observable-task-table/index.md

docs/pages/index.md

resources/css/docs-page-homepage.css

src/Command/StaticPagesBuild.php

src/CoroutineCommand.php

src/CronJobRunner.php

src/DependencyInjectionContainer.php

...DialogueMessageProducer/LlamaCppPromptMessageProducer.php

src/DialogueNode.php

src/DialogueNodeInterface.php

src/DialogueNodeTest.php

src/DialogueResponse.php

src/DialogueResponse/CatchAllResponse.php

src/DialogueResponse/LiteralInputResponse.php

src/DialogueResponse/LlamaCppExtractSubjectResponse.php

src/DialogueResponse/LlamaCppExtractWhenResponse.php

src/DialogueResponse/LlamaCppExtractYesNoMaybeResponse.php