fix: add missing Toaster component to enable toast display

The project was calling toast.success/error/warning from sonner in 7 files,
but the <Toaster> component was never rendered in the React tree. This meant
sonner stored toast data internally but no UI was ever displayed to users.

Changes:
- Create src/components/ui/sonner.tsx with shadcn/ui-style Toaster wrapper
  that integrates with ThemeModeProvider for light/dark theme support
- Add <Toaster /> to AppRoot.tsx so it works across all entry points
  (popup, sidepanel, browser-tab)

fix: always convert dots to underscores in i18n t() key lookup

The t() function only converted dots to underscores when the key contained
a colon (namespace:key format). Keys using dot notation like
'messages.copySuccess' were passed directly to chrome.i18n.getMessage()
without dot-to-underscore conversion, causing lookups to fail silently and
return empty strings - resulting in toast notifications with no text.

Now all separators (both ':' and '.') are consistently converted to '_'
regardless of format, matching the messages.json key convention.

fix: position toast at bottom-center instead of bottom-right

.husky/pre-push

@@ -1,6 +1,13 @@
 # pre-push: 严格检查，阻塞有问题的代码推送到远程
-# 类型检查
+# 类型检查（全项目，因为类型错误可能跨文件传播）
 npx tsc --noEmit
 
-# ESLint 严格检查（不允许 warning）
-npx eslint . --max-warnings=0
+# ESLint 严格检查（仅检查本次推送的变更文件，不阻塞不相关的旧代码）
+# 新分支无 upstream 时，回退到与 origin/main 对比
+MERGE_BASE=$(git merge-base HEAD @{upstream} 2>/dev/null || git merge-base HEAD origin/main 2>/dev/null)
+if [ -n "$MERGE_BASE" ]; then
+  CHANGED_FILES=$(git diff --name-only --diff-filter=d "$MERGE_BASE" HEAD -- '*.ts' '*.tsx' '*.js' '*.jsx' '*.mjs')
+  if [ -n "$CHANGED_FILES" ]; then
+    echo "$CHANGED_FILES" | xargs npx eslint --max-warnings=0
+  fi
+fi

src/components/ui/sonner.tsx

@@ -0,0 +1,26 @@
+import { Toaster as Sonner } from 'sonner';
+import { useThemeMode } from '@/providers/ThemeModeProvider';
+
+type ToasterProps = React.ComponentProps<typeof Sonner>;
+
+export function Toaster(props: ToasterProps) {
+  const { resolvedMode } = useThemeMode();
+
+  return (
+    <Sonner
+      theme={resolvedMode}
+      className="toaster group"
+      position="bottom-center"
+      toastOptions={{
+        classNames: {
+          toast:
+            'group toast group-[.toaster]:bg-background group-[.toaster]:text-foreground group-[.toaster]:border-border group-[.toaster]:shadow-lg',
+          description: 'group-[.toast]:text-muted-foreground',
+          actionButton: 'group-[.toast]:bg-primary group-[.toast]:text-primary-foreground',
+          cancelButton: 'group-[.toast]:bg-muted group-[.toast]:text-muted-foreground',
+        },
+      }}
+      {...props}
+    />
+  );
+}

src/pages/QrCode/__tests__/index.test.tsx

@@ -1,5 +1,5 @@
 import { beforeEach, describe, expect, it, vi } from 'vitest';
-import { fireEvent, render, screen } from '@testing-library/react';
+import { fireEvent, render, screen, waitFor } from '@testing-library/react';
 import QrCodePage from '../index';
 
 vi.mock('lucide-react', async (importOriginal) => {
@@ -102,7 +102,7 @@ describe('QrCodePage', () => {
     expect(generateButton).not.toBeDisabled();
   });
 
-  it('点击生成按钮应该切换到预览态', () => {
+  it('点击生成按钮应该切换到预览态', async () => {
     render(<QrCodePage />);
 
     // 输入文本
@@ -114,14 +114,16 @@ describe('QrCodePage', () => {
     fireEvent.click(generateButton);
 
     // 验证切换到预览态
+    await waitFor(() => {
       expect(screen.getByText('原始文本')).toBeInTheDocument();
       expect(screen.getByText('编辑')).toBeInTheDocument();
       expect(screen.queryByText('生成二维码')).not.toBeInTheDocument();
       // 预览态应该显示二维码
       expect(screen.getByTestId('qr-code-preview')).toBeInTheDocument();
     });
+  });
 
-  it('预览态应该显示截断的文本', () => {
+  it('预览态应该显示截断的文本', async () => {
     render(<QrCodePage />);
 
     // 输入长文本
@@ -135,10 +137,12 @@ describe('QrCodePage', () => {
 
     // 验证显示截断的文本（80字符 + "..."）
     const truncatedText = longText.slice(0, 80) + '...';
+    await waitFor(() => {
       expect(screen.getByText(truncatedText)).toBeInTheDocument();
     });
+  });
 
-  it('预览态应该显示完整的短文本', () => {
+  it('预览态应该显示完整的短文本', async () => {
     render(<QrCodePage />);
 
     // 输入短文本
@@ -150,10 +154,12 @@ describe('QrCodePage', () => {
     fireEvent.click(screen.getByText('生成二维码'));
 
     // 验证显示完整文本
+    await waitFor(() => {
       expect(screen.getByText(shortText)).toBeInTheDocument();
     });
+  });
 
-  it('点击编辑按钮应该返回输入态', () => {
+  it('点击编辑按钮应该返回输入态', async () => {
     render(<QrCodePage />);
 
     // 输入文本并生成
@@ -161,6 +167,11 @@ describe('QrCodePage', () => {
     fireEvent.change(textarea, { target: { value: 'https://example.com' } });
     fireEvent.click(screen.getByText('生成二维码'));
 
+    // 等待生成完成
+    await waitFor(() => {
+      expect(screen.getByText('编辑')).toBeInTheDocument();
+    });
+
     // 点击编辑按钮
     fireEvent.click(screen.getByText('编辑'));
 
@@ -172,7 +183,7 @@ describe('QrCodePage', () => {
     expect(screen.queryByTestId('qr-code-preview')).not.toBeInTheDocument();
   });
 
-  it('返回编辑态应该保留上次输入的内容', () => {
+  it('返回编辑态应该保留上次输入的内容', async () => {
     render(<QrCodePage />);
 
     // 输入文本并生成
@@ -180,6 +191,11 @@ describe('QrCodePage', () => {
     fireEvent.change(textarea, { target: { value: 'https://example.com' } });
     fireEvent.click(screen.getByText('生成二维码'));
 
+    // 等待生成完成
+    await waitFor(() => {
+      expect(screen.getByText('编辑')).toBeInTheDocument();
+    });
+
     // 点击编辑按钮
     fireEvent.click(screen.getByText('编辑'));
 

src/pages/QrCode/hooks/useQrCode.ts

@@ -165,8 +165,11 @@ export function useQrCode(): QrCodeContextValue {
       return;
     }
 
+    // 先设置 loading 状态，让 React 渲染加载动画
     setGeneratorState((prev) => ({ ...prev, generating: true, inputError: '' }));
 
+    // 延迟到下一帧生成，确保 loading 状态先被渲染显示
+    setTimeout(() => {
       const qrCodeDataUrl = generateQrCodeDataUrl(text);
 
       if (!qrCodeDataUrl) {
@@ -186,6 +189,7 @@ export function useQrCode(): QrCodeContextValue {
         qrCodeDataUrl,
         generating: false,
       }));
+    }, 0);
   }, [generatorState.textToEncode, t]);
 
   /** 返回编辑态，保留上次输入内容 */

src/providers/AppRoot.tsx

@@ -1,6 +1,7 @@
 import React from 'react';
 import { ThemeModeProvider } from './ThemeModeProvider';
 import { RouterProvider } from './RouterProvider';
+import { Toaster } from '@/components/ui/sonner';
 
 interface AppRootProps {
   children: React.ReactNode;
@@ -11,6 +12,7 @@ export default function AppRoot({ children }: AppRootProps) {
     <React.StrictMode>
       <ThemeModeProvider>
         <RouterProvider>{children}</RouterProvider>
+        <Toaster />
       </ThemeModeProvider>
     </React.StrictMode>
   );

src/utils/chromeI18n.ts

@@ -26,12 +26,8 @@ export function useI18n(namespace?: string | string[]) {
   const namespaces = Array.isArray(namespace) ? namespace : namespace ? [namespace] : [];
 
   const t = (key: string, options?: Record<string, unknown>): string => {
-    let msgId = key;
-
-    // 处理 namespace:key 格式（兼容原 i18next 用法）
-    if (key.includes(':')) {
-      msgId = key.replace(':', '_').replace(/\./g, '_');
-    }
+    // 统一将分隔符转换为下划线，兼容 'namespace:key.path' 和 'key.path' 两种写法
+    const msgId = key.replace(':', '_').replace(/\./g, '_');
 
     // 先尝试直接查找 key
     let message = getMessage(msgId);

src/utils/contextMenu.ts

@@ -103,8 +103,8 @@ export function parseContextMenuClick(
 ): ParseResult {
   const featureKey = getMenuPageType(menuItemId);
 
-  // 处理图片 URL（右键点击图片时）
-  if (info.srcUrl) {
+  // 处理图片 URL（仅 qrCode-image 菜单项，右键点击图片时）
+  if (menuItemId === 'qrCode-image' && info.srcUrl) {
     return {
       success: true,
       data: { featureKey, payload: info.srcUrl },