feat(inboxes): persist chatwoot working hours

internal/handler/api/v1/inbox_serializer.go

@@ -32,7 +32,7 @@ func serializeInbox(inbox *model.Inbox) map[string]any {
 		"enable_auto_assignment":        inbox.EnableAutoAssignment,
 		"auto_assignment_config":        configValue(config, "auto_assignment_config"),
 		"out_of_office_message":         inbox.OutOfOfficeMessage,
-		"working_hours":                 configArray(config, "working_hours"),
+		"working_hours":                 serializeInboxWorkingHours(inbox, config),
 		"timezone":                      inbox.Timezone,
 		"callback_webhook_url":          configValue(config, "callback_webhook_url"),
 		"allow_messages_after_resolved": inbox.AllowMessagesAfterResolved,
@@ -96,6 +96,25 @@ func serializeInbox(inbox *model.Inbox) map[string]any {
 	return payload
 }
 
+func serializeInboxWorkingHours(inbox *model.Inbox, config map[string]any) any {
+	if len(inbox.WorkingHours) == 0 {
+		return configArray(config, "working_hours")
+	}
+	payload := make([]any, 0, len(inbox.WorkingHours))
+	for _, wh := range inbox.WorkingHours {
+		payload = append(payload, map[string]any{
+			"day_of_week":    wh.DayOfWeek,
+			"closed_all_day": wh.ClosedAllDay,
+			"open_hour":      wh.OpenHour,
+			"open_minutes":   wh.OpenMinutes,
+			"close_hour":     wh.CloseHour,
+			"close_minutes":  wh.CloseMinutes,
+			"open_all_day":   wh.OpenAllDay,
+		})
+	}
+	return payload
+}
+
 func chatwootChannelType(channelType string) string {
 	if strings.HasPrefix(channelType, "Channel::") {
 		return channelType