docs: IOTA-only README for MasterZ hackathon

feat: wire IOTA Identity bridge into server — full IOTA integration

chore: configure IOTA testnet anchor package ID (deployed Move contract)

chore: point app to deployed Render server by default

add Dockerfile for Render/Railway deployment

feat: add HTS practitioner credential NFTs for multi-service Hedera integration

feat: add IOTA Rebased backend — dual blockchain support

fix: CORS, auth flow, app shell, demo script — final demo readiness

fix: unify token flow + add breadcrumb navigation to all pages

fix: make UI functional — FHIR data mapping, back buttons, type=button

feat: rewrite desktop app from Flutter to Tauri + React

docs: update agents.md with Hedera HCS and Sentinel status

chore: point open-anchor to remote with Hedera backend

feat: add cholera/measles outbreak data to seed command

feat: integrate Hedera HCS anchor backend into nucleus server