Add revenue quote approval guard

[Davidrsdiaz]

/claim #20

Summary

• Adds a self-contained revenue quote approval guard for issue Revenue Infrastructure #20.
• Validates institutional quote-to-cash packets before invoices or entitlements activate by checking legal entity, billing contact, PO/payment evidence, required approvals, non-standard term approvals, discount thresholds, invoice total parity, invoice SKU parity, entitlement scope, contract dates, compute margin floors, and analytics privacy addenda.
• Generates deterministic JSON, Markdown, SVG, and H.264 MP4 reviewer artifacts from synthetic data only.

Demo

• revenue-quote-approval-guard/reports/demo.mp4
• revenue-quote-approval-guard/reports/quote-approval-summary.svg

Validation

• node revenue-quote-approval-guard/test.js
• node revenue-quote-approval-guard/demo.js
• node revenue-quote-approval-guard/make-demo-video.js
• node --check revenue-quote-approval-guard/index.js
• node --check revenue-quote-approval-guard/sample-data.js
• node --check revenue-quote-approval-guard/demo.js
• node --check revenue-quote-approval-guard/test.js
• node --check revenue-quote-approval-guard/make-demo-video.js
• ffprobe -v error -select_streams v:0 -show_entries stream=codec_name,width,height,duration,nb_frames -show_entries format=size,duration -of default=noprint_wrappers=1 revenue-quote-approval-guard/reports/demo.mp4 -> H.264, 1280x720, 4.0s, 48 frames
• git diff --check
• git diff --cached --check

Safety

Synthetic fixtures only. No payment, CRM, CPQ, ERP, tax, bank, wallet, identity, institutional, private customer, or external service calls are used.