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

web/src/components/TokenSwap.tsx

@@ -221,8 +221,8 @@ const TokenSwap = () => {
             // AccountIdConverter implementation in substrate:
             // blake2_256(&Encode::encode(&(PalletId, PoolId))[..])
             if (import.meta.env.DEV) console.log('🔍 Deriving pool account using AccountIdConverter...');
-            const { stringToU8a } = await import('@polkadot/util');
-            const { blake2AsU8a } = await import('@polkadot/util-crypto');
+            const { stringToU8a } = await import('@pezkuwi/util');
+            const { blake2AsU8a } = await import('@pezkuwi/util-crypto');
 
             // PalletId for AssetConversion: "py/ascon" (8 bytes)
             const PALLET_ID = stringToU8a('py/ascon');
@@ -543,7 +543,7 @@ const TokenSwap = () => {
       });
 
       // Get signer from extension
-      const { web3FromAddress } = await import('@polkadot/extension-dapp');
+      const { web3FromAddress } = await import('@pezkuwi/extension-dapp');
       const injector = await web3FromAddress(selectedAccount.address);
 
       // Build transaction based on token types