Replace npm aliases (@polkadot -> @pezkuwi) with direct @pezkuwi package
imports. Add tsconfig path mappings to redirect @polkadot type references
from @subql/types to @pezkuwi equivalents, enabling proper type resolution
without installing @polkadot packages. Remove Polkadot ecosystem swap/bridge
integrations (HydraDx, AssetConversion) as they're incompatible with Pezkuwi.