Introduce #![deny(clippy::unwrap_used)]

[richox]

Is your feature request related to a problem? Please describe.

https://blog.cloudflare.com/18-november-2025-outage/

Cloudflare experienced several hours of downtime, resulting in a loss of billions of dollars in market value because of a Result::unwrap() call. we should learn from that and forbid .unwrap() in our codebase.

Describe the solution you'd like

add #![deny(clippy::unwrap_used)] to all modules (tests can be excluded). so no unwrap call is allowed in the code. as a walkaround, developers are likely to use .expect("... some reason why this extraction is always valid ...") to extract the value.

Describe alternatives you've considered

Additional context

[yew1eb]

I can take this.

[github-actions]

This issue is stale because it has been open for 30 days with no activity.