refactor: use point-free style for path utilities

Use fp.compose for get-output-name and get-directory-name to leverage
existing composition utilities and adopt more idiomatic functional style.

Changes:
- path/default.nix: Convert to point-free using snowfall-lib.fp.compose

Impact: Improved code style, more functional approach
Testing: nix flake check ✓

snowfall-lib/path/default.nix

@@ -131,8 +131,9 @@ in
     ## "bar"
     ## ```
     #@ Path -> String
-    get-output-name = path: 
-      builtins.unsafeDiscardStringContext (get-parent-directory path);
+    get-output-name = snowfall-lib.fp.compose
+      builtins.unsafeDiscardStringContext
+      get-parent-directory;
 
     ## Get the directory name for flake outputs.
     ## Example Usage:
@@ -144,8 +145,9 @@ in
     ## "foo"
     ## ```
     #@ Path -> String
-    get-directory-name = path: 
-      builtins.unsafeDiscardStringContext (baseNameOf path);
+    get-directory-name = snowfall-lib.fp.compose
+      builtins.unsafeDiscardStringContext
+      baseNameOf;
 
     ## Get relative module path from source directory.
     ## Example Usage: