Use id to access orgs (#1873)

closes #1743 

fixes: setting secrets for own user namespace

- create org in database
- use orgID for org related APIs

Co-authored-by: 6543 <6543@obermui.de>

server/model/org.go

@@ -0,0 +1,29 @@
+// Copyright 2023 Woodpecker Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package model
+
+// Org represents an organization.
+type Org struct {
+	ID     int64  `json:"id,omitempty"   xorm:"pk autoincr 'id'"`
+	Name   string `json:"name"           xorm:"UNIQUE 'name'"`
+	IsUser bool   `json:"is_user"        xorm:"is_user"`
+	// if name lookup has to check for membership or not
+	Private bool `json:"-"              xorm:"private"`
+} //	@name Org
+
+// TableName return database table name for xorm
+func (Org) TableName() string {
+	return "orgs"
+}