Add enterprise funder reporting export gate

[Da7-Tech]

/claim #19

Summary

• Add a self-contained enterprise funder reporting export gate for institutional Enterprise Tooling.
• Evaluate funder mandate evidence, open-access or embargo status, reproducibility score thresholds, required artifact hashes, data-use evidence, and funder-aware destination routing.
• Emit export packets and deterministic webhook-ready governance events with SHA-256 signatures.
• Include synthetic sample data, local tests, a demo command, requirements map, acceptance notes, and an offline SVG demo frame.

Verification

• node enterprise-funder-reporting-export-gate/test.js
• node enterprise-funder-reporting-export-gate/demo.js
• git diff --check

Scope notes

This is distinct from the existing dashboard/export, incident response, secret rotation, quota governance, API change, and connector certification slices. It focuses on funder reporting readiness and repository export gates for institutional admins.

Payment fallback if manual payout is used: PayPal aa.631@hotmail.com