Real Blend positions, end to end: raw ledgers in, USD values out

The Positions API serves real Blend lending positions from mainnet data, USD valued and behind TLS.

• The full lending lifecycle is covered: supply, collateral, borrow, repay, withdraw, interest accrual, and liquidation.
• Health factors were reconciled against Blend’s own numbers across that lifecycle before release.
• Account activity, the protocol registry, and per-protocol TVL read from live data.