refactor(auth): modularize auth plugin with physical subpackages and decoupled services

backend/plugins/domain/auth/dao/auth_source.go

@@ -0,0 +1,61 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+// Package dao provides data access objects and caching for the auth domain plugin.
+package dao
+
+import (
+	"Wavelet/plugins/domain/auth/model/entity"
+	"context"
+)
+
+// ListAllAuthSources 获取全部认证源（含未启用），按 ID 升序
+func (d *DAO) ListAllAuthSources(ctx context.Context) ([]entity.AuthSource, error) {
+	var sources []entity.AuthSource
+	if err := d.DB(ctx).Order("id ASC").Find(&sources).Error; err != nil {
+		return nil, err
+	}
+	return sources, nil
+}
+
+// GetAuthSourceByID 根据 ID 获取认证源
+func (d *DAO) GetAuthSourceByID(ctx context.Context, id uint64) (*entity.AuthSource, error) {
+	var src entity.AuthSource
+	if err := d.DB(ctx).First(&src, id).Error; err != nil {
+		return nil, err
+	}
+	return &src, nil
+}
+
+// GetAuthSourceByName 根据名称获取认证源
+func (d *DAO) GetAuthSourceByName(ctx context.Context, name string) (*entity.AuthSource, error) {
+	var src entity.AuthSource
+	if err := d.DB(ctx).Where("name = ?", name).First(&src).Error; err != nil {
+		return nil, err
+	}
+	return &src, nil
+}
+
+// ListActiveAuthSources 获取所有启用的认证源
+func (d *DAO) ListActiveAuthSources(ctx context.Context) ([]entity.AuthSource, error) {
+	var sources []entity.AuthSource
+	if err := d.DB(ctx).Where("is_active = ?", true).Order("id ASC").Find(&sources).Error; err != nil {
+		return nil, err
+	}
+	return sources, nil
+}
+
+// CreateAuthSource 新建认证源记录
+func (d *DAO) CreateAuthSource(ctx context.Context, source *entity.AuthSource) error {
+	return d.DB(ctx).Create(source).Error
+}
+
+// SaveAuthSource 全量保存认证源记录
+func (d *DAO) SaveAuthSource(ctx context.Context, source *entity.AuthSource) error {
+	return d.DB(ctx).Save(source).Error
+}
+
+// DeleteAuthSource 删除认证源记录
+func (d *DAO) DeleteAuthSource(ctx context.Context, source *entity.AuthSource) error {
+	return d.DB(ctx).Delete(source).Error
+}