ci: add GitHub Pages deployment workflow

Add GitHub Actions workflow for automatic deployment to GitHub Pages. Includes build and deploy jobs with pnpm setup and caching. Also update package.json with deploy scripts and vite.config.ts with base URL configuration for production.

.github/workflows/deploy.yml

@@ -0,0 +1,79 @@
+name: Deploy to GitHub Pages
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  # Build job
+  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'
+          
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: latest
+          
+      - name: Get pnpm store directory
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+          
+      - name: Setup pnpm cache
+        uses: actions/cache@v4
+        with:
+          path: ${{ env.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+            
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+        
+      - name: Build
+        run: pnpm build
+        
+      - name: Setup Pages
+        uses: actions/configure-pages@v5
+        
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: './dist'
+
+  # Deployment job
+  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

package.json

@@ -7,7 +7,9 @@
     "dev": "vite",
     "build": "tsc -b && vite build",
     "lint": "eslint .",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "deploy": "pnpm build && gh-pages -d dist",
+    "predeploy": "pnpm build"
   },
   "dependencies": {
     "@reduxjs/toolkit": "^2.9.0",

vite.config.ts

@@ -6,6 +6,7 @@ import tailwindcss from "@tailwindcss/vite"
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [react(), tailwindcss()],
+  base: process.env.NODE_ENV === 'production' ? '/react-template/' : '/',
   resolve: {
     alias: {
       "@": fileURLToPath(new URL("./src", import.meta.url)),