feat: add Chidubem Kingsley to contributors and include SafeTrust research submission documentation

[owohdora-stack]

Summary

Closes #24

Research and submission of SafeTrust — a decentralized P2P escrow platform for the hospitality and tourism sector, built on Stellar via the TrustlessWork API.

Changes Made

Added

• research/safetrust-stellar-wave-submission.md — Comprehensive research document covering:
  • Project overview, domain, and Stellar Wave Program verification (4x Points tier)
  • Technical architecture across 4 repos (frontend, backend, dApp monorepo, landing)
  • Stellar integration via TrustlessWork Soroban escrow infrastructure
  • USDC stablecoin payments with Freighter/Albedo/LOBSTOR wallet support
  • Escrow lifecycle and platform architecture diagrams
  • Community metrics (~2,259 commits, ~341 forks, ~46 stars)
  • Category: Payments | Tags: stellar, escrow, soroban, hospitality, tourism, payments, stellar-wave, defi, trustless-work, p2p, stablecoin, fintech, latin-america

Updated

• CONTRIBUTORS.md — Added contributor entry for Chidubemkingsley as Researcher — SafeTrust

Validation Checklist

• Project is a verified Stellar Wave Program participant (4x Points on Drips)
• Description is original, thorough, and exceeds 200 words
• On-chain usage verified through Trustless Work API integration
• Category and tags are accurate
• No existing submission found for SafeTrust on the Hub

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[samieazubike]

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