Compilation error in v0.24.17: Box type not found in result_ext.rs

[RAprogramm]

Description

Version 0.24.17 fails to compile with errors about Box type not being in scope in src/result_ext.rs:84.

Error Output

error[E0412]: cannot find type `Box` in this scope
  --> src/result_ext.rs:84:25
   |
84 |             let source: Box<dyn CoreError + Send + Sync + 'static> = Box::new(err);
   |                         ^^^ not found in this scope
   |
help: consider importing this struct
   |
 5 + use alloc::boxed::Box;
   |

error[E0433]: failed to resolve: use of undeclared type `Box`
  --> src/result_ext.rs:84:70
   |
84 |             let source: Box<dyn CoreError + Send + Sync + 'static> = Box::new(err);
   |                                                                      ^^^ use of undeclared type `Box`

Environment

• Rust version: 1.90.0 stable (1159e78c4 2025-09-14)
• masterror version: 0.24.17
• Dependency configuration: masterror = { version = "0.24", default-features = false }

Fix

The file src/result_ext.rs is missing the import for Box. Need to add:

use alloc::boxed::Box;

Steps to Reproduce

1. Add masterror = { version = "0.24", default-features = false } to Cargo.toml
2. Run cargo build
3. Observe compilation error

Expected Behavior

Should compile without errors.

Actual Behavior

Compilation fails with "cannot find type Box in this scope" error.