Implement CCIP for cross-chain batch data migration

[Nitya-003]

🧩 Problem

CropChain currently runs on a single network (e.g., Polygon). However, high-value institutional retailers might prefer their final settlement on the Ethereum Mainnet for higher security, while farmers use Polygon for low fees. Currently, data is "siloed" on one chain.

✨ Proposed Change

Integrate Chainlink CCIP (Cross-Chain Interoperability Protocol) to allow "Batch Records" to be sent or mirrored across multiple blockchains.

Technical Requirements:

1. CCIP Integration: Implement the IRouterClient to send data packets between chains.
2. State Sync: When a batch reaches the "Retailer" stage on Polygon, trigger a cross-chain message to mint a "Proof of Delivery" NFT on Ethereum.
3. Gas Abstraction: Use a "Paymaster" logic so farmers only pay in a single currency, even if data moves across chains.

✅ Acceptance Criteria

• A batch created on Chain A can be "Verified" or "Updated" on Chain B.
• Successful handling of cross-chain message failures (reverting state).
• Real-time UI progress bar showing the cross-chain transaction status.

🛠️ Implementation Hint

Start with the Chainlink CCIP Local Simulator to test the logic before moving to testnets like Sepolia and Mumbai.

[mohsinaalima]

@Nitya-003 hy! I Would like to work on this issue under apertre

[Nitya-003]

@mohsinaalima Any update?

[udaykiran243]

hey @Nitya-003 please assign this issue to me.