Deposit supported ERC‑20 rewards into TokenTrailVault on Robinhood Chain.
Funded rewards, signed only after GPS verification.
The backend checks geofence, GPS accuracy, movement, wallet limits and active street position.
A short-lived EIP‑712 voucher is signed. The wallet submits it and the vault transfers the ERC‑20.
Only after a confirmed Claimed event does the server rotate that drop to another street in the same city.