Add GitHub Pages deployment workflow and fix subpath config

- Add .github/workflows/deploy.yml (GitHub Pages, npm ci + vite build)
- Set vite base to /leetcode-53-maximum-subarray/ for subpath deployment
- Replace missing vite.svg favicon with inline emoji data URI
- Add online demo link to README
- Add server-url.txt to .gitignore (internal LAN address, not committed)

Co-Authored-By: Claude Code <noreply@anthropic.com>

Author: CC11001100

.github/workflows/deploy.yml

@@ -0,0 +1,54 @@
+name: Deploy to GitHub Pages
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: './dist'
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

.gitignore

@@ -12,6 +12,9 @@ dist
 dist-ssr
 *.local
 
+# 局域网访问入口（内网地址不入库）
+server-url.txt
+
 # Editor directories and files
 .vscode/*
 !.vscode/extensions.json

README.md

@@ -2,6 +2,10 @@
 
 一个交互式的可视化应用，帮助你理解 LeetCode 53 题的最大子数组和算法（Kadane's Algorithm）。
 
+## 🎉 在线演示
+
+👉 [点击查看在线演示](https://fuck-algorithm.github.io/leetcode-53-maximum-subarray/)
+
 ## 📚 算法简介
 
 **Kadane 算法**是一个经典的动态规划算法，用于在 O(n) 时间复杂度内找到一个数组中具有最大和的连续子数组。

index.html

@@ -2,7 +2,7 @@
 <html lang="zh-CN">
   <head>
     <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>🎯</text></svg>" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>最大子数组和 - 算法可视化</title>
   </head>

package-lock.json

@@ -3,6 +3,8 @@ import react from '@vitejs/plugin-react'
 
 export default defineConfig({
   plugins: [react()],
+  // GitHub Pages 部署在子路径下，需要配置 base
+  base: '/leetcode-53-maximum-subarray/',
   server: {
     port: 60740,
   },