chore: point mainnet Pyth JSON-RPC default at Triton endpoint - #91
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updateSingleTokenPrice passed no options to updatePythPriceFeeds / updateOraclePricesPTB, so NAVI's module-level default client served the SuiPythClient object reads on every deposit and withdraw — the public mainnet fullnode, the traffic #91 moved off public endpoints. Pass context.blockchain.suiGrpcClient to both. Guard pythPriceFeedId / pythPriceInfoObject, which NAVI treats as optional: the latter reaches tx.object() as arg 5 of oracle_pro::update_single_price_v3, so a supra/switchboard-only feed would abort on tx.object('') instead of naming the feed. Drop the DMC PRICE_FEED entry — the only one of our 21 absent from NAVI's live oracle.feeds, with no Navi pool and no reference in src/ outside the map. The other 20 match byte-identically and all carry Pyth data.
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Mysten shuts off JSON-RPC on fullnode.mainnet.sui.io on 2026-07-26. The internal Pyth SuiJsonRpcClient default for mainnet now uses the Triton endpoint. Testnet default and the gRPC client default are unchanged (gRPC is not affected by the shutdown).
Note: the Triton endpoint is Origin-gated (403 without an allowed browser Origin), so this default only works from allowed alphafi/alphalend domains; server-side consumers must pass their own pythSuiClient.