fix clippy

[loongs-zhang]

// Describe your PR here; eg. Fixes #issueNo

Make sure that:

• You submit test cases (unit or integration tests) that back your changes.
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[Copilot]

Pull Request Overview

This PR addresses Clippy warnings by replacing std::mem::transmute calls with safer type conversion methods and updating modulo operations to use the more expressive is_multiple_of method.

• Replace unsafe transmute operations with safe byte conversion methods in x86 architecture-specific code
• Update modulo checks to use the is_multiple_of method for better readability

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
core/src/coroutine/korosensei.rs	Replaces transmute with safe byte conversions for x86 register handling
core/src/common/work_steal.rs	Updates modulo operation to use is_multiple_of method
core/src/common/ordered_work_steal.rs	Updates modulo operation to use is_multiple_of method

Comments suppressed due to low confidence (2)

core/src/common/work_steal.rs:281

• The is_multiple_of method was stabilized in Rust 1.82.0. If this codebase targets an earlier Rust version, this method may not be available and could cause compilation failures.

        if self.tick().is_multiple_of(61) {

core/src/common/ordered_work_steal.rs:350

• The is_multiple_of method was stabilized in Rust 1.82.0. If this codebase targets an earlier Rust version, this method may not be available and could cause compilation failures.

        if self.tick().is_multiple_of(61) {