Scanner: Add support for social media post analysis (Twitter/X, Reddit, Moltbook) #2
Description
Current scanner supports URL, file, text, RSS, and batch modes. Social media content has distinct patterns:
- Thread structures — multi-post narratives where SCT vectors compound across posts
- Engagement metrics — like/repost ratios can indicate SCT-005 (amplification embedding) effectiveness
- Reply chain analysis — identifies SCT-007 (recursive infection) propagation patterns
- Profile context — enables SCT-003 (authority fabrication) detection via credential verification
Proposed: --twitter <url>, --reddit <url>, --moltbook <post-id> modes that fetch and analyze with platform-specific context.