fix: tighten ci typecheck coverage

src/web/pages/tokens.edit-and-select.test.tsx

@@ -143,7 +143,7 @@ describe('Tokens edit modal and row selection', () => {
   });
 
   it('opens the centered edit modal when editing a token', async () => {
-    let root: ReturnType<typeof create> | null = null;
+    let root!: WebTestRenderer;
     try {
       await act(async () => {
         root = buildRoot();
@@ -191,7 +191,7 @@ describe('Tokens edit modal and row selection', () => {
   });
 
   it('selects a token when clicking the row body, but not when clicking an action button', async () => {
-    let root: ReturnType<typeof create> | null = null;
+    let root!: WebTestRenderer;
     try {
       await act(async () => {
         root = buildRoot();
@@ -232,7 +232,7 @@ describe('Tokens edit modal and row selection', () => {
   it('does not repeatedly refetch groups when edit-group loading fails once', async () => {
     apiMock.getAccountTokenGroups.mockRejectedValueOnce(new Error('账号会话可能已过期，请重新登录后再拉取分组'));
 
-    let root: ReturnType<typeof create> | null = null;
+    let root!: WebTestRenderer;
     try {
       await act(async () => {
         root = buildRoot();
@@ -274,7 +274,7 @@ describe('Tokens edit modal and row selection', () => {
     ]);
     apiMock.getAccountTokenValue.mockRejectedValueOnce(new Error('当前仅保存了脱敏令牌，无法展开/复制。请在站点重新生成并同步，或手动更新为完整令牌。'));
 
-    let root: ReturnType<typeof create> | null = null;
+    let root!: WebTestRenderer;
     try {
       await act(async () => {
         root = buildTokensRoot();
@@ -356,7 +356,7 @@ describe('Tokens edit modal and row selection', () => {
     });
     apiMock.getAccountTokenValue.mockRejectedValueOnce(new Error('当前仅保存了脱敏令牌，无法展开/复制。请在站点重新生成并同步，或手动更新为完整令牌。'));
 
-    let root: ReturnType<typeof create> | null = null;
+    let root!: WebTestRenderer;
     try {
       await act(async () => {
         root = buildTokensRoot();