完善后台管理与测试支撑

1、为后台用户列表增加关键词和状态筛选，后端同步支持过滤与总数统计。

2、创建用户时要求填写初始密码，并补充前端校验和自动填充隔离。

3、优化项目管理列表角色展示、项目详情抽屉脏数据保护和审计详情抽屉关闭体验。

4、清理旧费用附件关联、统一测试模型注册，并更新迁移端点和注册筛选测试。

frontend/src/views/admin/Projects.test.ts

@@ -52,6 +52,28 @@ describe("project management access", () => {
     expect(source).toContain("canProject(scope.row, 'audit_export', 'read')");
   });
 
+  it("shows the current project role only for non-admin project lists", () => {
+    const source = readProjects();
+
+    expect(source).toContain('v-if="!isAdmin" label="我的角色" align="center"');
+    expect(source).toContain("roleLabel(scope.row.role_in_study) || '-'");
+    expect(source).toContain("const { roleLabel, loadRoleTemplates } = useRoleTemplateMeta();");
+    expect(source).toContain("loadRoleTemplates().catch(() => {});");
+  });
+
+  it("keeps project table columns evenly spaced after adding the role column", () => {
+    const source = readProjects();
+
+    expect(source).toContain('class="project-table" style="width: 100%" table-layout="fixed"');
+    expect(source).toContain(':label="TEXT.common.fields.projectName"');
+    expect(source).toContain(`:label="TEXT.common.fields.protocolNo || '方案号'" show-overflow-tooltip`);
+    expect(source).toContain(':label="TEXT.common.fields.status" align="center"');
+    expect(source).toContain('label="锁定状态" align="center"');
+    expect(source).toContain(':label="TEXT.common.labels.actions" align="center"');
+    expect(source).not.toContain('projectColumnWidth');
+    expect(source).not.toContain('fixed="right"');
+  });
+
   it("opens project names in management detail when the user has setup config read permission", () => {
     const source = readProjects();