后台支持多账号与页面访问权限

保留环境变量管理员作为 owner，并新增可持久化管理的 member 账号
建立一级页面权限、实时会话失效和后端逐请求鉴权
统一操作记录与配置记录展示管理员显示名称，隐藏内部主体标识
补充账号管理页面、生成绑定、定向测试和技术文档

apps/admin-web/src/styles/admin.css

@@ -216,6 +216,17 @@ button:disabled {
   overflow: auto;
 }
 
+.admin-zero-permission-state {
+  min-height: 180px;
+  place-items: center;
+}
+
+.admin-zero-permission-state h2 {
+  margin: 0;
+  color: #6f5848;
+  font-size: 20px;
+}
+
 .admin-page {
   display: grid;
   gap: 18px;
@@ -513,6 +524,90 @@ button:disabled {
   grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
 }
 
+.admin-accounts-layout {
+  display: grid;
+  grid-template-columns: minmax(240px, 0.42fr) minmax(0, 1fr);
+  gap: 16px;
+  align-items: start;
+}
+
+.admin-account-list {
+  align-content: start;
+}
+
+.admin-account-list-items {
+  display: grid;
+  gap: 8px;
+}
+
+.admin-account-list-items > button {
+  display: flex;
+  min-width: 0;
+  min-height: 58px;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  border: 1px solid #eaded2;
+  border-radius: 8px;
+  color: #755a49;
+  background: #fffdf9;
+  padding: 10px 12px;
+  text-align: left;
+}
+
+.admin-account-list-items > button[data-active="true"] {
+  border-color: #c87955;
+  background: #f9eee5;
+}
+
+.admin-account-list-items > button > span {
+  display: grid;
+  min-width: 0;
+  gap: 3px;
+}
+
+.admin-account-list-items strong,
+.admin-account-list-items small {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.admin-account-list-items small {
+  color: #8f7868;
+  font-size: 12px;
+}
+
+.admin-permission-fieldset {
+  min-width: 0;
+  margin: 0;
+  border: 1px solid #e1ccbb;
+  border-radius: 8px;
+  padding: 14px;
+}
+
+.admin-permission-fieldset legend {
+  color: #6f5848;
+  font-size: 13px;
+  font-weight: 750;
+  padding: 0 6px;
+}
+
+.admin-permission-grid {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 10px 14px;
+}
+
+.admin-permission-grid label {
+  display: flex;
+  min-width: 0;
+  align-items: center;
+  gap: 8px;
+  color: #5f4738;
+  font-size: 13px;
+}
+
 .admin-stack,
 .admin-form {
   display: grid;
@@ -1861,6 +1956,7 @@ button:disabled {
   .admin-dashboard-operations,
   .admin-two-column,
   .admin-two-column-wide,
+  .admin-accounts-layout,
   .admin-pricing-grid,
   .admin-form-row,
   .admin-filter-grid,
@@ -1870,6 +1966,10 @@ button:disabled {
     grid-template-columns: 1fr;
   }
 
+  .admin-permission-grid {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+  }
+
   .admin-dashboard-heading {
     display: grid;
   }
@@ -1965,6 +2065,10 @@ button:disabled {
 }
 
 @media (max-width: 560px) {
+  .admin-permission-grid {
+    grid-template-columns: 1fr;
+  }
+
   .admin-login-panel,
   .admin-panel {
     padding: 16px;