Two optional LLM enhancements: link extraction from source pages and article
content extraction. Plan needs revision for Arc<dyn LlmProvider> threading
and <head> HTML preservation before implementation.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Two-phase pipeline: scrape personalized sources first, classify with LLM,
fall back to web search for gaps. Tasks 1-3 ready, Task 4 needs elaboration.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>