### Description: We need to collect and visualize the size of measurement batches submitted to web3.storage by spark-publish. Existing metric `publish` is already being sent to InfluxDB [here](https://github.com/CheckerNetwork/spark-api/blob/43b13a69c5577633f908cfba9df246fb83d92dae/publish/index.js#L128C3-L136) and should be simply extended by adding new point. The collected data should be sent to InfluxDB for storage and further analysis. ### Task Breakdown: 1. **Data Collection:** - Capture the size of each measurement batch submitted to web3.storage by spark-publish. - Extend [existing InfluxDB "publish" metric](https://github.com/CheckerNetwork/spark-api/blob/718bdc2265d23577a3fdf62eab90f00c4488802d/publish/index.js#L129-L138) with new point that captures batch size. 2. **Data Visualization:** - Create a chart to display size of measurement batches over time. - Create a chart to display size of measurement batches per round. ### Acceptance Criteria: - The system should accurately capture and store the size of each measurement batch submitted to web3.storage. - The visualization dashboard should provide real-time insights into the measurement batch sizes.