feat(widget): add USDH sunset migration widget#63
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Add USDHMigration, a HyperCore-only exit widget that converts a USDH balance back to USDC ahead of the USDH sunset. It mirrors USDHSwap in reverse: sell side, no bridging, no source-chain toggle. - new packages/widget/src/usdh-migration.tsx + USDHMigrationProps - generalize PayCard/ReceiveCard/ResultPanel/ActionButton with optional ticker props (defaults keep USDHSwap rendering identical) - demo registry entry + preview for the migration widget - usdh-migration.test.tsx (8 tests)
sumfxn
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Summary
usdh-kitas a USDH sunset/migration kit, not as a generic USDC or spot SDK.USDHMigration, the primary widget for moving remaining HyperCore USDH balances back to USDC.USDHSwapand bridge/acquisition flows available only as legacy compatibility surfaces.Widget / API
USDHMigrationandUSDHMigrationResultPayloadfrom@usdh-kit/widget.USDH/USDCdiscovery for the pre-wallet read-only quote.pairs[0]for migration.1:1receive estimate when the live quote is unavailable.spentUsdh,receivedUsdc,price, andslippageBpsthroughonMigrationComplete.USDHSwappublic callback/API unchanged.Package Boundaries
Tests
npx pnpm@10.33.2 verifygit diff --check/,/components,/components/usdh-migration,/components/usdh-widget/components/usdh-migration