style: apply cargo fmt to entire codebase

Standardize code formatting across all 173 Rust source files
using rustfmt. No functional changes - purely cosmetic.

This establishes a consistent code style baseline for the
project going forward.

src/application/mod.rs

@@ -1,7 +1,7 @@
+pub mod adapters;
 pub mod dtos;
 pub mod ports;
 pub mod services;
 pub mod transactions;
-pub mod adapters;
 
-// Re-exportaciones para facilitar el acceso a los principales puertos
+// Re-exportaciones para facilitar el acceso a los principales puertos