feat(solana-solvers): PR 2.2 buy orders via v1 ExactOut#4637
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Description
Buy-order support for the Jupiter solver, split out from PR2 and gated off by default. Both sides share the v1 path: PR2 quotes sells with ExactIn, this adds ExactOut for buys. Stacked on PR2.
Changes
enable_buy_ordersconfig flag, off by default. While off, buy orders returnOrderNotSupported.swap()picksswapModeper side:ExactInfor sells,ExactOutfor buys. Same/swap/v1/quote+/swap-instructionspath and DTO as sells, no new response type.How to test
New unit test (buy gated off). Live
#[ignore]buy test (ExactOut):cargo test -p solana-solvers -- --ignored jupiter_live(keyless works,JUPITER_API_KEYoptional).Notes
solana-solvers/PR2-jupiter-adapter), review that first.