Add GitHub Actions workflow for deployment

.gitea/workflows/deploy.yml

@@ -0,0 +1,29 @@
+name: Deploy to site
+
+on:
+  workflow_dispatch:
+    inputs:
+      site:
+        description: 'Выберите сайт для деплоя'
+        required: true
+        type: choice
+        options:
+          - schelkovo.dekart.school
+          - balashiha.dekart.school
+          - korolev.dekart.school
+          - mytishchi.dekart.school
+          - pushkino.dekart.school
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      
+      - name: Deploy to ${{ inputs.site }}
+        run: |
+          echo "🚀 Deploying to ${{ inputs.site }}..."
+          echo "TODO: SSH connection and deploy.sh execution"
+          echo "✅ Deploy completed!"