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/ports/mod.rs

@@ -15,4 +15,4 @@ pub mod storage_ports;
 pub mod thumbnail_ports;
 pub mod transcode_ports;
 pub mod trash_ports;
-pub mod zip_ports;
+pub mod zip_ports;