Add Gitea Actions workflow for auto-deploy to Foundry LXC

Builds CSS and compendium packs in CI, rsyncs the system to the
production Foundry server, and restarts the container on push to main.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/deploy.yml

@@ -0,0 +1,44 @@
+name: Deploy to Foundry Server
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  deploy:
+    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 system
+        run: npm run build
+
+      - name: Deploy to Foundry server
+        uses: burnett01/rsync-deployments@7.0.1
+        with:
+          switches: -avz --delete --exclude='.git' --exclude='node_modules' --exclude='foundrydata' --exclude='.env' --exclude='.env.example' --exclude='.gitea' --exclude='.github' --exclude='.claude' --exclude='.husky' --exclude='docs' --exclude='docker-compose.yml' --exclude='test_results'
+          path: ./
+          remote_path: /opt/foundry/data/Data/systems/vagabond/
+          remote_host: ${{ secrets.DEPLOY_HOST }}
+          remote_user: root
+          remote_key: ${{ secrets.DEPLOY_SSH_KEY }}
+
+      - name: Fix ownership and restart Foundry
+        uses: appleboy/ssh-action@v1
+        with:
+          host: ${{ secrets.DEPLOY_HOST }}
+          username: root
+          key: ${{ secrets.DEPLOY_SSH_KEY }}
+          script: |
+            chown -R 1000:1000 /opt/foundry/data/Data/systems/vagabond/
+            cd /opt/foundry && docker compose restart foundry