fix: [#304] remove clippy large_stack_arrays workaround (false positive resolved in nightly 1.96.0)

[josecelano]

Summary

Removes the crate-level #![allow(clippy::large_stack_arrays)] workaround from src/lib.rs that was added to suppress a clippy false positive.

Background

Issue #304 tracked a false positive where clippy incorrectly flagged vec![] macro usage (heap-allocated) as a large stack array. The upstream bug was reported at rust-lang/rust-clippy#12586.

Verification

Tested on nightly 1.96.0 (April 7, 2026):

1. Temporarily removed the #![allow(clippy::large_stack_arrays)] attribute
2. Ran cargo clippy --all-targets -- -D clippy::large-stack-arrays → no errors
3. Ran cargo clippy --all-targets -- -D clippy::pedantic → no errors

The false positive no longer occurs. The workaround is no longer needed.

Changes

• src/lib.rs: removed 6 lines (the #![allow(clippy::large_stack_arrays)] attribute and its 4 comment lines)

Related

• Closes Clippy large_stack_arrays false positive with vec![] macro #304
• Upstream fix: fix [large_stack_arrays] linting in vec macro rust-lang/rust-clippy#12624
• Issue spec: docs/issues/304-clippy-large-stack-arrays-false-positive.md

[josecelano]

ACK 00d8146