refactor: simplify service interface to use tags/rels for all node properties

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

cmd/add.go

@@ -1,6 +1,7 @@
 package cmd
 
 import (
+	"axolotl/models"
 	"axolotl/output"
 	"axolotl/service"
 	"fmt"
@@ -9,7 +10,7 @@ import (
 	"github.com/spf13/cobra"
 )
 
-var cDue, cContent, cStatus, cPrio, cType, cNamespace, cAssignee string
+var cDue, cContent, cType, cStatus, cPrio, cNamespace, cAssignee string
 var cTags, cRels []string
 
 var addCmd = &cobra.Command{
@@ -22,15 +23,27 @@ var addCmd = &cobra.Command{
 		}
 
 		input := service.AddInput{
-			Title:     args[0],
-			Content:   cContent,
-			DueDate:   cDue,
-			Type:      cType,
-			Status:    cStatus,
-			Priority:  cPrio,
-			Namespace: cNamespace,
-			Assignee:  cAssignee,
-			Tags:      cTags,
+			Title:   args[0],
+			Content: cContent,
+			DueDate: cDue,
+			Tags:    append([]string{}, cTags...),
+		}
+
+		// Shorthand flags expand to tags or rels.
+		if cType != "" {
+			input.Tags = append(input.Tags, "_type::"+cType)
+		}
+		if cStatus != "" {
+			input.Tags = append(input.Tags, "_status::"+cStatus)
+		}
+		if cPrio != "" {
+			input.Tags = append(input.Tags, "_prio::"+cPrio)
+		}
+		if cNamespace != "" {
+			input.Rels = append(input.Rels, service.RelInput{Type: models.RelInNamespace, Target: cNamespace})
+		}
+		if cAssignee != "" {
+			input.Rels = append(input.Rels, service.RelInput{Type: models.RelAssignee, Target: cAssignee})
 		}
 
 		for _, r := range cRels {
@@ -55,7 +68,7 @@ var addCmd = &cobra.Command{
 func init() {
 	rootCmd.AddCommand(addCmd)
 	f := addCmd.Flags()
-	f.StringVar(&cType, "type", "issue", "node type (issue, note, …)")
+	f.StringVar(&cType, "type", "", "node type (issue, note, …)")
 	f.StringVar(&cStatus, "status", "", "initial status (open, done)")
 	f.StringVar(&cPrio, "prio", "", "priority (high, medium, low)")
 	f.StringVar(&cNamespace, "namespace", "", "namespace name or ID")