Quote
Quote issuance and aggregate status polling.
Quote USDC → stock token (one leg per chain the ticker lists, better first)
Requires `ownership_proof` for each wallet provided. Returns one best leg per
Wallet-less price preview (integrator key required)
The `quote_only` shape with **no wallet and no ownership proof**: prices every chain the
Quote stock holdings → USDC (all legs needed; all-or-nothing submit)
Plans the optimal sequence of swap legs across the user's current holdings.
Aggregate + per-leg status for a previously issued quote
Public read-only; no `ownership_proof`. Ethereum in-flight rows are