fix(tests): compare library roots by canonical display path

Update model_library::library::tests::test_library_creation to compare canonical display-path strings rather than raw PathBuf equality.

This reuses the existing projection canonicalization helper so the assertion stays stable across macOS path aliases, Windows verbatim prefixes, and Windows 8.3 short-name paths exposed by CI temp directories.

Verified with cargo test -p pumas-library --manifest-path rust/Cargo.toml model_library::library::tests::test_library_creation and cargo test -p pumas-library --manifest-path rust/Cargo.toml --lib.

Author: MrScripty

rust/crates/pumas-core/src/model_library/library.rs

@@ -4736,8 +4736,9 @@ mod tests {
     #[tokio::test]
     async fn test_library_creation() {
         let (temp_dir, library) = setup_library().await;
-        let expected_root = temp_dir.path().canonicalize().unwrap();
-        assert_eq!(library.library_root(), expected_root);
+        let actual_root = canonicalize_display_path(&library.library_root().display().to_string());
+        let expected_root = canonicalize_display_path(&temp_dir.path().display().to_string());
+        assert_eq!(actual_root, expected_root);
         assert!(library.db_path().exists());
     }