Index convictionVoting and referenda pallet data to support PezWallet
governance UI — referendum tracking, casting votes, delegation stats,
and delegator vote propagation.
- Add packageManager field to package.json for corepack
- Add .yarnrc.yml with node-modules linker
- Update all workflows to use corepack enable + yarn --immutable
- Remove yarn cache from actions/setup-node (incompatible with Yarn 4)
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.