Add the mred CLI over the library, with flags accepted after positionals

issue list/show/create/update, version list/create, category
list/create, relation create. Names resolve case-insensitively against
server enumerations; -o json everywhere; exit 0/1/2 with one-line
stderr carrying the http status for API failures.

internal/fakeredmine/fakeredmine.go

@@ -14,6 +14,7 @@ import (
 	"net/http"
 	"net/http/httptest"
 	"net/url"
+	"sort"
 	"strconv"
 	"strings"
 	"sync"
@@ -308,13 +309,14 @@ func (s *Server) listIssues(q url.Values) (int, string) {
 		}
 	}
 	type out struct {
-		Issues    []Issue `json:"issues"`
-		Total     int     `json:"total_count"`
-		Offset    int     `json:"offset"`
-		Limit     int     `json:"limit"`
+		Issues    []map[string]any `json:"issues"`
+		Total     int              `json:"total_count"`
+		Offset    int              `json:"offset"`
+		Limit     int              `json:"limit"`
 	}
 	o := out{Limit: limit}
-	for _, i := range s.issues {
+	var ids []int
+	for id, i := range s.issues {
 		if proj != "" && i.ProjectID != proj {
 			continue
 		}
@@ -327,7 +329,11 @@ func (s *Server) listIssues(q url.Values) (int, string) {
 		if ver != "" && strconv.Itoa(i.FixedVersionID) != ver {
 			continue
 		}
-		o.Issues = append(o.Issues, *i)
+		ids = append(ids, id)
+	}
+	sort.Ints(ids)
+	for _, id := range ids {
+		o.Issues = append(o.Issues, issueView(s, *s.issues[id], false))
 	}
 	o.Total = len(o.Issues)
 	if len(o.Issues) > limit {