chore: bump MSRV to 1.88 and enable num-traits/libm

[shuhuiluo]

• Bump Minimum Supported Rust Version from 1.87 to 1.88
• Enable libm feature for num-traits in numtraits feature flag
• Normalize code formatting and whitespace across codebase

[shuhuiluo]

@neogenie Please merge this.

[neogenie]

Hi @shuhuiluo!

1. I think we could just bump the version to MSRV 1.88.
2. Shouldn't we add the dependency only for no_std?
3. Pinning home crate looks like a duct tape.

[shuhuiluo]

Hi @shuhuiluo!

1. I think we could just bump the version to MSRV 1.88.
2. Shouldn't we add the dependency only for no_std?
3. Pinning home crate looks like a duct tape.

@neogenie There is no no_std feature. Instead we should enable the dependencies' std feature for our std feature.

[shuhuiluo]

@neogenie What's is blocking a merge? A new release is necessary to fix the MSRV.