ci: add deploy gh action workflow

.github/workflows/deploy.yml

@@ -0,0 +1,80 @@
+name: Build & Deploy (static, pnpm)
+
+on:
+  push:
+    branches: [main, gh_action]
+
+concurrency:
+  group: "deploy-production"
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out
+        uses: actions/checkout@v4
+
+      - name: Setup PNPM
+        uses: pnpm/action-setup@v4
+        with:
+          version: 8
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: 'pnpm'
+
+      - name: Install deps
+        run: pnpm install --frozen-lockfile
+
+      - name: Build
+        run: pnpm build
+
+      - name: Upload build artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: static-out
+          path: out
+          if-no-files-found: error
+
+  deploy:
+    name: Deploy
+    needs: build
+    runs-on: ubuntu-latest
+    environment: production
+
+    steps:
+      - name: Download build artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: static-out
+          path: out
+
+      - name: Prepare SSH
+        shell: bash
+        env:
+          SSH_HOST: ${{ secrets.SSH_HOST }}
+          SSH_USER: ${{ secrets.SSH_USER }}
+          SSH_PORT: ${{ secrets.SSH_PORT }}
+          SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
+          SSH_TARGET_DIR: ${{ secrets.SSH_TARGET_DIR }}
+        run: |
+          mkdir -p ~/.ssh
+          chmod 700 ~/.ssh
+          echo "$SSH_PRIVATE_KEY" > ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed25519
+          ssh-keygen -l -f ~/.ssh/id_ed25519
+          # Add host to known_hosts (falls back to 22 if SSH_PORT is empty)
+          PORT=${SSH_PORT:-22}
+          ssh-keyscan -p "$PORT" -H "$SSH_HOST" >> ~/.ssh/known_hosts
+          chmod 600 ~/.ssh/known_hosts
+          # Sync files (delete removed files on server)
+          rsync -avz --delete \
+            -e "ssh -i ~/.ssh/id_ed25519 -p $PORT -o StrictHostKeyChecking=yes" \
+            out/ "$SSH_USER@$SSH_HOST:$SSH_TARGET_DIR"
+
+

next.config.js

@@ -1,6 +1,6 @@
 /** @type {import('next').NextConfig} */
 const nextConfig = {
-  output: 'standalone'
+  output: 'export'
 }
 
 module.exports = nextConfig