Get an overview of the portfolio, including net worth, delta, and PnL. Covers native coins, ERC-20 tokens and DeFi deposits, loans and rewards; NFTs are not included. EVM and Solana addresses may be mixed in one request, but Solana wallets are served as a current snapshot: no start point, zero PnL and no user activities. The window is capped at 30 days and only its boundary timestamps are sampled.