Feature request

Use OPFS to replace caches, Support resuming model downloads from where they were interrupted.

Motivation

Since models are typically large in size, they are more prone to interruptions. Having to re-download the entire model each time can easily lead to wasted time and bandwidth.

To address this, it's important to implement a mechanism that supports resuming downloads from where they were interrupted, allowing users to continue downloading without starting over. This approach not only improves efficiency but also reduces unnecessary resource consumption.

Your contribution

I can provide a PR (Pull Request) to contribute this functionality