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/lib/xcm-wizard.ts

@@ -5,8 +5,8 @@
  * and XCM transfer testing for PezkuwiChain.
  */
 
-import type { ApiPromise } from '@polkadot/api';
-import type { InjectedAccountWithMeta } from '@polkadot/extension-inject/types';
+import type { ApiPromise } from '@pezkuwi/api';
+import type { InjectedAccountWithMeta } from '@pezkuwi/extension-inject/types';
 
 // ========================================
 // TYPES