feat: optimize release assets to reduce total count

- Use tar.gz for all Unix platforms (Linux, macOS)
- Use zip only for Windows platform
- Keep source code in both tar.gz and zip formats
- Reduces total release assets to 7 files + checksums

This creates exactly 7 downloadable assets:
- 1 Windows zip binary
- 4 Unix tar.gz binaries (darwin-amd64/arm64, linux-amd64/arm64)
- 2 source archives (tar.gz + zip)

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: Brandon H

Makefile

@@ -147,11 +147,14 @@ release: clean
 		env GOOS=$$os GOARCH=$$arch GO111MODULE=on $(GOBUILD) $(BUILD_FLAGS) -o $(DIST_DIR)/$$binary_name $(SRC_DIR); \
 		\
 		archive_name=$(BINARY_NAME)-$(VERSION)-$$os-$$arch; \
-		echo "Creating archives for $$archive_name..."; \
+		echo "Creating archive for $$archive_name..."; \
 		\
 		cd $(DIST_DIR); \
-		tar -czf $$archive_name.tar.gz $$binary_name; \
-		zip -q $$archive_name.zip $$binary_name; \
+		if [ $$os = "windows" ]; then \
+			zip -q $$archive_name.zip $$binary_name; \
+		else \
+			tar -czf $$archive_name.tar.gz $$binary_name; \
+		fi; \
 		rm $$binary_name; \
 		cd ..; \
 	done