fix(onramp/phantom): detect expired blockhash and show accurate retry message#747
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When a Phantom wallet round-trip exceeds ~60s, the blockhash baked into the transaction expires and Solana rejects it with "Blockhash not found". Previously this surfaced a misleading "Make sure you have enough USDC and SOL" error. - Add TransactionExpired error variant to DeeplinkOnRampErrors - Detect blockhash errors in sendSwapTransaction before the generic FailedToSendTransaction fallback - Move processing state and navigation to onSuccess so progress only starts after the user returns from Phantom - Observe PhantomCeremonyFailed on the processing screen so dismissing the alert exits instead of leaving the user stuck Signed-off-by: Brandon McAnsh <git@bmcreations.dev>
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When a Phantom wallet round-trip exceeds ~60s, the blockhash baked into the transaction expires and Solana rejects it with "Blockhash not found". Previously this surfaced a misleading "Make sure you have enough USDC and SOL" error.