WIP feat: chain data index

[mr13tech]

on every tx change state

[Anuragyadav622003]

I'm excited to work on this as I have experience building APIs and indexing on-chain data for Web3 apps. I plan to design a robust chain data indexer that fetches relevant blockchain events or transactions, normalizes the data, and stores it efficiently for querying and analytics. I'm comfortable working with EVM-based chains, The Graph, or custom indexers using Node.js/TypeScript and PostgreSQL. I’m confident I can contribute to making this feature scalable and reliable.