refactor: replace explicit fields with tag-based property system

models/node.go

@@ -23,40 +23,13 @@ const (
 	RelAssignee RelType = "assignee"
 )
 
-func ParseTag(s string) (key, value string, isProperty bool) {
-	if strings.HasPrefix(s, "_") {
-		if parts := strings.SplitN(s[1:], "::", 2); len(parts) == 2 {
-			return parts[0], parts[1], true
-		}
-	}
-	return "", s, false
-}
-
-func PropertyTag(key, value string) string {
-	return "_" + key + "::" + value
-}
-
-func (n *Node) GetProperty(key string) string {
-	for _, tag := range n.Tags {
-		if k, v, ok := ParseTag(tag); ok && k == key {
-			return v
+func (n *Node) GetProperty(k string) string {
+	for _, t := range n.Tags {
+		if strings.HasPrefix(t, "_") {
+			if p := strings.SplitN(t[1:], "::", 2); len(p) == 2 && p[0] == k {
+				return p[1]
+			}
 		}
 	}
 	return ""
 }
-
-func (n *Node) GetType() string {
-	if t := n.GetProperty("type"); t != "" {
-		return t
-	}
-	return "issue"
-}
-
-func (n *Node) HasTag(tag string) bool {
-	for _, t := range n.Tags {
-		if t == tag {
-			return true
-		}
-	}
-	return false
-}