Make Solana approval gate load-bearing

[mauyaa]

Summary

• Add a minimal Anchor approval program with approve_milestone(project_id, milestone_id) storing certifier pubkey, timestamp, project id, and milestone id in an approval PDA.
• Wire approval PDA derivation and payout enforcement so the payout transaction includes the approval PDA as a required readonly account and fails if the PDA account does not exist.
• Add Squads v4 integration for a 2-of-2 Owner + Certifier payout proposal/execution path when WEZA_REQUIRE_SQUADS_PAYOUT=1 is configured.
• Add /demo guided judge route with Submit → Certify → Payout, Kenyan construction data, and side-by-side approval/payout Explorer links.
• Rewrite /about around the Kenya $15B+ construction market narrative and add docs/COLOSSEUM_SUBMISSION.md with the requested max-300-word copy.
• Preserve login hardening, deployment preflight diagnostics, and dynamic authenticated routes for Vercel.

Walkthrough

guided_judge_demo_route_final.mp4

Testing

• npm test
• npm run build
• curl -I http://localhost:3003/demo
• curl -s http://localhost:3003/about | python3 -c ...
• curl -s http://localhost:3003/api/health/config

Notes

• Live Vercel login still cannot be fixed from the workspace alone; this branch must be merged/deployed, then /api/health/config and /api/health/solana should be checked and npm run seed run against the live Supabase project.
• Squads v4 payout is gated by WEZA_REQUIRE_SQUADS_PAYOUT=1 plus SOLANA_TREASURY_KEYPAIR and SOLANA_CERTIFIER_KEYPAIR; local/test fallback remains direct transfer so tests stay green without devnet credentials.

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Project	Deployment	Actions	Updated (UTC)
weza-build	Ready	Preview, Comment	Apr 24, 2026 10:18pm

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