fix: 前端表格行类型断言修复并补充 psycopg-pool 依赖

- 审批/项目/租户/用户设置等视图新增 asXxx 类型断言辅助函数
- search-fields 由字符串改为数组传参
- backend 依赖新增 psycopg-pool，Dockerfile 依赖校验同步更新

frontend/src/views/tenants/TenantListView.vue

@@ -25,6 +25,15 @@ function openDetail(id: string) {
   router.push(`/tenants/${id}`)
 }
 
+function asTenant(row: unknown): Tenant {
+  return row as Tenant
+}
+
+function quotaText(row: unknown): string {
+  const quota = asTenant(row).quota || {}
+  return Object.keys(quota).length ? JSON.stringify(quota) : '—'
+}
+
 async function submitCreate() {
   if (!form.value.name) {
     ElMessage.warning('请填写租户名称')
@@ -75,15 +84,15 @@ onMounted(load)
         <el-table-column prop="code" label="编码" min-width="100" />
         <el-table-column label="配额" min-width="160">
           <template #default="{ row }">
-            {{ Object.keys(row.quota || {}).length ? JSON.stringify(row.quota) : '—' }}
+            {{ quotaText(row) }}
           </template>
         </el-table-column>
         <el-table-column prop="status" label="状态" min-width="100" />
         <el-table-column prop="create_time" label="创建时间" min-width="180" />
       </template>
       <template #actions="{ row }">
-        <el-button link type="primary" @click="openDetail(row.id)">详情</el-button>
-        <el-button link type="primary" @click="setQuota(row)">配额</el-button>
+        <el-button link type="primary" @click="openDetail(asTenant(row).id)">详情</el-button>
+        <el-button link type="primary" @click="setQuota(asTenant(row))">配额</el-button>
       </template>
     </DataTablePage>
     <el-dialog v-model="showCreate" title="新建租户" width="520px">