feat: add supervisor prototype with embedded frontend

internal/util/ids.go

@@ -0,0 +1,12 @@
+package util
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+)
+
+func NewID(prefix string) string {
+	buf := make([]byte, 8)
+	_, _ = rand.Read(buf)
+	return prefix + "_" + hex.EncodeToString(buf)
+}