feat: add tenant admin invite management, ledger overview, order details, and order management features

- Implemented Invite management with creation, searching, and disabling functionalities.
- Added Ledger overview for financial transactions with filtering options.
- Developed Order Detail view for individual order insights and refund capabilities.
- Created Orders management page with search, reset, and pagination features.
- Enhanced user experience with toast notifications for actions and error handling.

backend/app/services/tenant.go

@@ -7,6 +7,7 @@ import (
 
 	superdto "quyun/v2/app/http/super/dto"
 	tenantdto "quyun/v2/app/http/tenant/dto"
+	web_dto "quyun/v2/app/http/web/dto"
 	"quyun/v2/app/requests"
 	"quyun/v2/database"
 	"quyun/v2/database/models"
@@ -26,6 +27,72 @@ import (
 // @provider
 type tenant struct{}
 
+// UserTenants 查询“当前用户可进入的租户列表”（平台通用域 /v1）。
+// - 返回 tenant_users 维度的角色与加入时间，便于前端做“选择租户进入后台”的交互。
+// - 不做租户状态过滤：前端可以根据 TenantStatusDescription 做提示或禁用进入按钮。
+func (t *tenant) UserTenants(ctx context.Context, userID int64) ([]*web_dto.MyTenantItem, error) {
+	if userID <= 0 {
+		return nil, errors.New("user_id must be > 0")
+	}
+
+	// 先查 tenant_users，拿到用户加入的租户ID与角色信息（避免 join scan 冲突/字段覆盖问题）。
+	tuTbl, tuQuery := models.TenantUserQuery.QueryContext(ctx)
+	tenantUsers, err := tuQuery.Where(tuTbl.UserID.Eq(userID)).Order(tuTbl.ID.Desc()).Find()
+	if err != nil {
+		return nil, err
+	}
+	if len(tenantUsers) == 0 {
+		return []*web_dto.MyTenantItem{}, nil
+	}
+
+	tenantIDs := lo.Uniq(lo.FilterMap(tenantUsers, func(tu *models.TenantUser, _ int) (int64, bool) {
+		if tu == nil || tu.TenantID <= 0 {
+			return 0, false
+		}
+		return tu.TenantID, true
+	}))
+	if len(tenantIDs) == 0 {
+		return []*web_dto.MyTenantItem{}, nil
+	}
+
+	// 再查 tenants（批量），并构建映射，保持输出顺序以 tenant_users 为准。
+	teTbl, teQuery := models.TenantQuery.QueryContext(ctx)
+	tenants, err := teQuery.Where(teTbl.ID.In(tenantIDs...)).Find()
+	if err != nil {
+		return nil, err
+	}
+	tenantMap := make(map[int64]*models.Tenant, len(tenants))
+	for _, te := range tenants {
+		if te == nil {
+			continue
+		}
+		tenantMap[te.ID] = te
+	}
+
+	items := make([]*web_dto.MyTenantItem, 0, len(tenantUsers))
+	for _, tu := range tenantUsers {
+		if tu == nil {
+			continue
+		}
+		te := tenantMap[tu.TenantID]
+		if te == nil {
+			continue
+		}
+		items = append(items, &web_dto.MyTenantItem{
+			TenantID:                te.ID,
+			TenantCode:              te.Code,
+			TenantName:              te.Name,
+			TenantStatus:            te.Status,
+			TenantStatusDescription: te.Status.Description(),
+			IsOwner:                 te.UserID == userID,
+			MemberRoles:             tu.Role,
+			MemberStatus:            tu.Status,
+			JoinedAt:                tu.CreatedAt,
+		})
+	}
+	return items, nil
+}
+
 // SuperDetail 查询单个租户详情（平台侧）。
 func (t *tenant) SuperDetail(ctx context.Context, tenantID int64) (*superdto.TenantItem, error) {
 	if tenantID <= 0 {