refactor: better project structure (#35)

This project is starting to grow, and I've seen flaws in the initial
project structure design
I think I'll restructure the entire project directory for better
scalability and also cleaner

root/config_cmd_test.go

@@ -0,0 +1,32 @@
+package root
+
+import (
+	"bytes"
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestConfigCommands(t *testing.T) {
+	tmpDir, err := os.MkdirTemp("", "iris-config-cmd-test")
+	if err != nil {
+		t.Fatalf("failed to create temp dir: %v", err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	t.Setenv("XDG_CONFIG_HOME", tmpDir)
+
+	ConfigInitCmd.Run(ConfigInitCmd, []string{})
+
+	configPath := filepath.Join(tmpDir, "iris", "config.toml")
+	if _, err := os.Stat(configPath); err != nil {
+		t.Errorf("expected config file to be created at %s, but it was not", configPath)
+	}
+
+	buf := new(bytes.Buffer)
+	ConfigShowCmd.SetOut(buf)
+	ConfigShowCmd.Run(ConfigShowCmd, []string{})
+	if buf.Len() == 0 {
+		t.Errorf("expected show command to output configuration")
+	}
+}