Add partner royalty settlement guard

[swhan0329]

/claim #20

Summary

• Add a distinct partner royalty settlement guard for Revenue Infrastructure, focused on data-licensing and white-label analytics payout settlement.
• Calculate platform fees, reseller fees, contributor royalty pools, reserves, payout lines, holds, blockers, recommended finance actions, and a deterministic audit digest.
• Include requirement mapping, acceptance notes, a terminal demo, an SVG preview, and a short H.264 MP4 demo artifact.

Scope differentiation

This avoids another generic subscription, metering, tax, dispute, SLA, renewal, pricing, procurement, margin, or privacy-gate module. The slice is specifically the pre-payout settlement policy layer for partner/data-license revenue shares.

Validation

• node partner-royalty-settlement-guard/test.js
• node partner-royalty-settlement-guard/demo.js
• ffprobe -v error -show_entries format=duration,size -show_entries stream=codec_name,width,height -of default=noprint_wrappers=1 partner-royalty-settlement-guard/demo.mp4
• git diff --check

AI-assisted with Codex; reviewed and locally verified before submission.