fs: creating articles (and presumably wikis); fixes and improvements to editing articles.

nostrfs/helpers.go

@@ -2,6 +2,17 @@ package nostrfs
 
 import "strconv"
 
+func kindToExtension(kind int) string {
+	switch kind {
+	case 30023:
+		return "md"
+	case 30818:
+		return "adoc"
+	default:
+		return "txt"
+	}
+}
+
 func hexToUint64(hexStr string) uint64 {
 	v, _ := strconv.ParseUint(hexStr[16:32], 16, 64)
 	return v