Add NWC protocol handling and NIP-44 encryption and decryption functions.

pkg/encoders/tag/tag.go

@@ -8,7 +8,7 @@ import (
 
 	"lol.mleku.dev/errorf"
 	"next.orly.dev/pkg/encoders/text"
-	utils "next.orly.dev/pkg/utils"
+	"next.orly.dev/pkg/utils"
 )
 
 // The tag position meanings, so they are clear when reading.

pkg/encoders/tag/tags.go

@@ -166,3 +166,11 @@ func (s *S) GetAll(t []byte) (all []*T) {
 	}
 	return
 }
+
+func (s *S) GetTagElement(i int) (t *T) {
+	if s == nil || len(*s) < i {
+		return
+	}
+	t = (*s)[i]
+	return
+}