fix(pages): fix VitePress config import errors

- Create missing configs/en.mts file for English locale
- Fix import path in config.mts to explicitly reference ./configs/index.mts
- Resolve 'Could not resolve' errors in Documentation workflow

Fixes VitePress build failures

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

Author: shijiashuai

docs/.vitepress/config.mts

@@ -1,5 +1,5 @@
 import { defineConfig } from 'vitepress'
-import { head, nav, sidebar, search } from './configs'
+import { head, nav, sidebar, search } from './configs/index.mts'
 
 // https://vitepress.dev/reference/site-config
 export default defineConfig({

docs/.vitepress/configs/en.mts

@@ -0,0 +1,139 @@
+import type { DefaultTheme, LocaleSpecificConfig } from 'vitepress'
+
+export default {
+  label: 'English',
+  lang: 'en-US',
+  description: 'A comprehensive CUDA kernel optimization laboratory for AI workloads',
+
+  themeConfig: {
+    nav: [
+      { text: 'Home', link: '/en/' },
+      {
+        text: 'Guide',
+        items: [
+          { text: 'GEMM Optimization', link: '/en/guide/gemm' },
+          { text: 'Memory Optimization', link: '/en/guide/memory' },
+          { text: 'Reduction Optimization', link: '/en/guide/reduction' },
+          { text: 'FlashAttention', link: '/en/guide/flash-attention' },
+          { text: 'CUDA 13 Features', link: '/en/guide/cuda13' }
+        ]
+      },
+      {
+        text: 'API Reference',
+        items: [
+          { text: 'C++ / CUDA API', link: '/cpp-api/index.html', target: '_blank' },
+          { text: 'Python API', link: '/python-api/index.html', target: '_blank' }
+        ]
+      },
+      {
+        text: 'v0.3.0',
+        items: [
+          { text: 'Changelog', link: '/en/changelog' },
+          { text: 'GitHub Releases', link: 'https://github.com/LessUp/hpc-ai-optimization-lab/releases' }
+        ]
+      }
+    ],
+
+    sidebar: {
+      '/en/guide/': [
+        {
+          text: 'Getting Started',
+          collapsed: false,
+          items: [
+            { text: 'Introduction', link: '/en/guide/' },
+            { text: 'Installation', link: '/en/guide/installation' },
+            { text: 'Quick Start', link: '/en/guide/quick-start' }
+          ]
+        },
+        {
+          text: 'Core Guides',
+          collapsed: false,
+          items: [
+            { text: 'Memory Optimization', link: '/en/guide/memory' },
+            { text: 'Reduction Optimization', link: '/en/guide/reduction' },
+            { text: 'GEMM Optimization', link: '/en/guide/gemm' },
+            { text: 'FlashAttention', link: '/en/guide/flash-attention' },
+            { text: 'CUDA 13 Features', link: '/en/guide/cuda13' }
+          ]
+        },
+        {
+          text: 'Advanced',
+          collapsed: true,
+          items: [
+            { text: 'Profiling', link: '/en/guide/profiling' },
+            { text: 'Best Practices', link: '/en/guide/best-practices' },
+            { text: 'Troubleshooting', link: '/en/guide/troubleshooting' }
+          ]
+        }
+      ],
+      '/en/api/': [
+        {
+          text: 'API Reference',
+          collapsed: false,
+          items: [
+            { text: 'Overview', link: '/en/api/' },
+            { text: 'C++ / CUDA', link: '/cpp-api/index.html', target: '_blank' },
+            { text: 'Python', link: '/python-api/index.html', target: '_blank' },
+            { text: 'Architecture', link: '/en/api/architecture' }
+          ]
+        },
+        {
+          text: 'Modules',
+          collapsed: true,
+          items: [
+            { text: 'Elementwise', link: '/en/api/elementwise' },
+            { text: 'Reduction', link: '/en/api/reduction' },
+            { text: 'GEMM', link: '/en/api/gemm' },
+            { text: 'Convolution', link: '/en/api/convolution' },
+            { text: 'Attention', link: '/en/api/attention' },
+            { text: 'Quantization', link: '/en/api/quantization' },
+            { text: 'CUDA 13', link: '/en/api/cuda13' }
+          ]
+        }
+      ],
+      '/en/examples/': [
+        {
+          text: 'Examples',
+          collapsed: false,
+          items: [
+            { text: 'Overview', link: '/en/examples/' },
+            { text: 'Elementwise Operations', link: '/en/examples/elementwise' },
+            { text: 'Matrix Multiplication', link: '/en/examples/gemm' },
+            { text: 'Attention', link: '/en/examples/attention' },
+            { text: 'Python Bindings', link: '/en/examples/python' }
+          ]
+        }
+      ]
+    },
+
+    outline: {
+      label: 'On this page'
+    },
+
+    docFooter: {
+      prev: 'Previous page',
+      next: 'Next page'
+    },
+
+    lastUpdated: {
+      text: 'Last updated'
+    },
+
+    editLink: {
+      pattern: 'https://github.com/LessUp/hpc-ai-optimization-lab/edit/main/docs/:path',
+      text: 'Edit this page on GitHub'
+    },
+
+    footer: {
+      message: 'Released under the Apache 2.0 License.',
+      copyright: 'Copyright © 2024-2026 HPC-AI-Optimization-Lab Contributors'
+    },
+
+    langMenuLabel: 'Change language',
+    returnToTopLabel: 'Return to top',
+    sidebarMenuLabel: 'Menu',
+    darkModeSwitchLabel: 'Appearance',
+    lightModeSwitchTitle: 'Switch to light theme',
+    darkModeSwitchTitle: 'Switch to dark theme'
+  }
+} as LocaleSpecificConfig<DefaultTheme.Config>