Add release recipe to Justfile

Author: TheFunctionalGuy

Justfile

@@ -1,5 +1,18 @@
 _default:
     @just --list
 
+# Convert statement from LATIN9 encoding to UTF8 encoding
 convert FILE:
     iconv -f LATIN9 -t UTF8 {{FILE}} -o {{without_extension(FILE)}}_utf8.{{extension(FILE)}}
+
+_build_release:
+    zig build release-artifacts
+
+_pack_release:
+    zip zig-out/release/comdirect-spending-calculator-x86_64-windows.zip zig-out/release/comdirect-spending-calculator.exe
+    tar czf zig-out/release/comdirect-spending-calculator-x86_64-linux.tar.gz zig-out/release/comdirect-spending-calculator
+
+# Create and pack release artifacts
+release:
+    just _build_release
+    just _pack_release