feat: the model's short name up to 12 characters

internal/server/ai.go

@@ -44,7 +44,7 @@ const (
 func aiUserKey(id int64) string { return "ai_user_" + strconv.FormatInt(id, 10) }
 
 // aiConfig is one model the assistant can ask: its id and the names the chat
-// shows (Short, up to 9 characters, on the button of the model in use), the
+// shows (Short, up to 12 characters, on the button of the model in use), the
 // kind of API, its address, model and key.
 type aiConfig struct {
 	ID    string `json:"id"`
@@ -77,8 +77,8 @@ func (c aiConfig) tidy() aiConfig {
 		c.Type = "gradio"
 	}
 	c.Name, c.Model, c.Key = strings.TrimSpace(c.Name), strings.TrimSpace(c.Model), strings.TrimSpace(c.Key)
-	if r := []rune(strings.TrimSpace(c.Short)); len(r) > 9 {
-		c.Short = strings.TrimSpace(string(r[:9]))
+	if r := []rune(strings.TrimSpace(c.Short)); len(r) > 12 {
+		c.Short = strings.TrimSpace(string(r[:12]))
 	} else {
 		c.Short = string(r)
 	}