implement Error for jid crate error types

jid/src/lib.rs

@@ -62,11 +62,23 @@ impl sqlx::Encode<'_, Sqlite> for JID {
     }
 }
 
+#[derive(Debug)]
 pub enum JIDError {
     NoResourcePart,
     ParseError(ParseError),
 }
 
+impl Display for JIDError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            JIDError::NoResourcePart => f.write_str("resourcepart missing"),
+            JIDError::ParseError(parse_error) => parse_error.fmt(f),
+        }
+    }
+}
+
+impl Error for JIDError {}
+
 #[derive(Debug)]
 pub enum ParseError {
     Empty,