- Add articleTitleResolver service to fetch article titles from relays
- Extract naddr identifiers from markdown content
- Fetch article titles in parallel using relay pool
- Replace naddr references with actual article titles
- Fallback to identifier if title fetch fails
- Update markdown processing to be async for title resolution
- Pass relayPool through component tree to enable resolution
Example: nostr:naddr1... now shows as "My Article Title" instead of "article:identifier"
Improves readability by showing human-friendly article titles in cross-references
