stargate: bridge: add v2 positions

Title:

[x] Pattern for PR title "protocol_name : protocol_category : other comments". Example - "uniswap: dex : tvl by user"

Checklist before requesting a review

index.ts file

[ ] Contains function

```export const getUserTVLByBlock = async (blocks: BlockData) => {
    const { blockNumber, blockTimestamp } = blocks
        //    Retrieve data using block number and timestamp
        // YOUR LOGIC HERE

    return csvRows

};
```

[ ] getUserTVLByBlock function takes input with this schema

    interface BlockData {
        blockNumber: number;
        blockTimestamp: number;
    }

[ ] getUserTVLByBlock function returns output in this schema

```
const csvRows: OutputDataSchemaRow[] = [];

type OutputDataSchemaRow = {
    block_number: number;  //block_number which was given as input
    timestamp: number;     // block timestamp which was given an input, epoch format
    user_address: string;   // wallet address, all lowercase
    token_address: string;  // token address all lowercase
    token_balance: bigint;  // token balance, raw amount. Please dont divide by decimals
    token_symbol: string; //token symbol should be empty string if it is not available
    usd_price: number; //assign 0 if not available
};
```

[ ] contains function

    const readBlocksFromCSV = async (filePath: string): Promise<BlockData[]> => {
    const blocks: BlockData[] = [];

    await new Promise<void>((resolve, reject) => {
        fs.createReadStream(filePath)
        .pipe(csv()) // Specify the separator as '\t' for TSV files
        .on('data', (row) => {
            const blockNumber = parseInt(row.number, 10);
            const blockTimestamp = parseInt(row.timestamp, 10);
            if (!isNaN(blockNumber) && blockTimestamp) {
            blocks.push({ blockNumber: blockNumber, blockTimestamp });
            }
        })
        .on('end', () => {
            resolve();
        })
        .on('error', (err) => {
            reject(err);
        });
    });

    return blocks;
    };

[ ] has this code

readBlocksFromCSV('hourly_blocks.csv').then(async (blocks: any[]) => {
console.log(blocks);
const allCsvRows: any[] = []; 

for (const block of blocks) {
    try {
        const result = await getUserTVLByBlock(block);
        allCsvRows.push(...result);
    } catch (error) {
        console.error(`An error occurred for block ${block}:`, error);
    }
}
await new Promise((resolve, reject) => {
    const ws = fs.createWriteStream(`outputData.csv`, { flags: 'w' });
    write(allCsvRows, { headers: true })
        .pipe(ws)
        .on("finish", () => {
        console.log(`CSV file has been written.`);
        resolve;
        });
});

}).catch((err) => {
console.error('Error reading CSV file:', err);
});

[ ] Your code is handling Pagination to make sure all data for a given block is returned

Output data
- [ ] Created a folder test on the same level as src and put sample outputData.csv with 15-20 records generated by your code
- [ ] Data is returned for underlying tokens only. Not for special tokens (lp/veTokens etc)
- [ ] Follows the exact sequence mentioned in OutputDataSchemaRow . This is needed as we want same column ordering in output csv
- Value of each field is :
  - [ ] block_number is same as input block number. This signifies TVL is as of this block_number.
  - [ ] timestamp is same as input timestamp. This signifies TVL is as of this timestamp. It is in epoch format.
  - [ ] user_address is in lowercase
  - [ ] token_address is in lowercase
  - [ ] token_balance is in raw amount. Please dont divide by decimals.
  - [ ] token_symbol value if present, empty string if value is not available.
  - [ ] usd_price if value is available, 0 if value is not available.

delta-hq / l2-lxp-liquidity-reward

stargate: bridge: add v2 positions #278

Title:

Checklist before requesting a review