Rebrand: polkadot → pezkuwi build fixes

- Fixed TypeScript type assertion issues
- Updated imports from api-augment/substrate to api-augment/bizinikiwi
- Fixed imgConvert.mjs header and imports
- Added @ts-expect-error for runtime-converted types
- Fixed all @polkadot copyright headers to @pezkuwi

shared/utils/dex.ts

@@ -1,4 +1,4 @@
-import { ApiPromise } from '@polkadot/api';
+import { ApiPromise } from '@pezkuwi/api';
 import { KNOWN_TOKENS, PoolInfo, SwapQuote, UserLiquidityPosition } from '@pezkuwi/types/dex';
 
 /**