Index convictionVoting and referenda pallet data to support PezWallet
governance UI — referendum tracking, casting votes, delegation stats,
and delegator vote propagation.
Add handlePoolBonded/handlePoolUnbonded handlers to Asset Hub SubQuery.
When a user bonds to a nomination pool, they are saved as an ActiveStaker
with networkId=AssetHub and stakingType=nomination-pool. This fixes the
wallet showing INACTIVE for HEZ stakers.
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.