feat: initial commit — unarr CLI

Search, inspect, stream, and download torrents from the terminal.
Replaces the entire *arr stack with a single binary.

internal/cmd/version_cmd.go

@@ -0,0 +1,20 @@
+package cmd
+
+import (
+	"fmt"
+	"runtime"
+
+	"github.com/spf13/cobra"
+)
+
+func newVersionCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "version",
+		Short: "Show unarr version",
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Printf("unarr %s (%s/%s)\n", Version, runtime.GOOS, runtime.GOARCH)
+		},
+	}
+
+	return cmd
+}