feat: add cross-chain redemption tracking via Wormhole VAA parsing

[mswilkison]

Summary

• Add support for tracking the origin chain of L2 redemptions via L1BTCRedeemerWormhole contract
• Parse Wormhole VAA messages to extract source chain ID (Arbitrum, Base, Sui, Starknet, etc.)
• Enable filtering and querying redemptions by their origin L2 chain

Changes

Schema

• Add WormholeChain enum with supported chains (ARBITRUM, BASE, SUI, STARKNET, etc.)
• Add sourceChainId, sourceChain, wormholeSequence fields to Redemption entity
• Add WormholeSender entity to track allowed L2 senders
• Add CrossChainRedemptionTracker entity for linking VAA data to redemptions

Data Source

• Add L1BTCRedeemerWormhole contract (0x5D4d83aaB53B7E7cA915AEB2d4d3f4e03823DbDe)
• Handle RedemptionRequested and AllowedSenderUpdated events
• Handle requestRedemption(bytes) calls to decode Wormhole VAA

Mapping

• Implement parseWormholeVAA() to decode VAA structure and extract emitter chain ID
• Link cross-chain data to redemptions when events fire

Example Query

{
  redemptions(where: { sourceChain: ARBITRUM }) {
    id
    amount
    sourceChainId
    sourceChain
    wormholeSequence
  }
}

Notes

• Fulltext search feature temporarily commented out (causes non-determinism error in some graph-node versions)
• Call handlers require archive node access for historical data

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