feat: move remaining go scripts to main executable

scripts/genkey/main.go

@@ -1,12 +1,20 @@
-package main
+package genkey
 
 import (
 	"crypto/rand"
 	"encoding/base64"
 	"fmt"
+
+	"github.com/urfave/cli/v2"
 )
 
-func main() {
+var Command = &cli.Command{
+	Name:   "key",
+	Usage:  "Generate a secure 64-byte base 64 key",
+	Action: run,
+}
+
+func run(c *cli.Context) error {
 	b := make([]byte, 64)
 
 	_, err := rand.Read(b)
@@ -17,4 +25,5 @@ func main() {
 	s := base64.URLEncoding.EncodeToString(b)
 
 	fmt.Println(s)
+	return nil
 }