chore: cleanup old frontend code and update project configs

This commit removes the deprecated frontend/web-old directory, updates various project configuration files including tsconfig, vite config, environment variables, and backend data models. It also fixes several API paths, adds tenant awareness to multiple models, and makes minor UI adjustments.

frontend/web/src/styles/core/app.scss

@@ -166,15 +166,18 @@
 // 元素全屏
 .el-full-screen {
   position: fixed;
-  inset: 0;
+  top: 0;
+  left: 0;
+  right: 0;
+  width: 100vw !important;
+  height: 100% !important;
   z-index: 2300;
+  margin-top: 0;
+  padding: 15px;
   box-sizing: border-box;
+  background-color: var(--default-box-color);
   display: flex;
   flex-direction: column;
-  width: 100vw;
-  padding: 15px;
-  margin: 0;
-  background-color: var(--default-box-color);
 }
 
 // 表格卡片：与 FaTableHeader + FaTable 组成纵向 flex，表格区 flex 填满、分页在表格正下方
@@ -284,12 +287,15 @@
 // 修复老机型 loading 定位问题
 .fa-loading-fix {
   position: fixed !important;
-  inset: 0 !important;
+  top: 0 !important;
+  left: 0 !important;
+  right: 0 !important;
+  bottom: 0 !important;
+  width: 100vw !important;
+  height: 100vh !important;
   display: flex !important;
   align-items: center !important;
   justify-content: center !important;
-  width: 100vw !important;
-  height: 100vh !important;
 }
 
 .fa-loading-fix .el-loading-spinner {

frontend/web/src/styles/core/reset.scss

@@ -4,7 +4,7 @@
 
 /* 滚动条整体部分,必须要设置 */
 ::-webkit-scrollbar {
-  width: 8px !important;
+  width: 4px !important;
   height: 0 !important;
 }