ax(node): replace prose description on validatePeerName with usage examples

Co-Authored-By: Charon <charon@lethean.io>

pkg/node/peer.go

@@ -68,9 +68,9 @@ func safeKeyPrefix(key string) string {
 	return key
 }
 
-// validatePeerName checks if a peer name is valid.
-// Peer names must be 1-64 characters, start and end with alphanumeric,
-// and contain only alphanumeric, hyphens, underscores, and spaces.
+// validatePeerName("my-worker")   // nil
+// validatePeerName("bad name!!!")  // error: invalid characters
+// validatePeerName("")             // nil (empty names are optional)
 func validatePeerName(name string) error {
 	if name == "" {
 		return nil // Empty names are allowed (optional field)