ci: add Gitea Actions deploy workflow

.gitea/workflows/deploy.yml

@@ -0,0 +1,22 @@
+name: Deploy
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: self-hosted
+    steps:
+      - name: Pull latest
+        run: git -C /opt/roject pull
+
+      - name: Install dependencies
+        run: npm --prefix /opt/roject ci --omit=dev
+
+      - name: Build
+        run: npm --prefix /opt/roject run build
+
+      - name: Restart service
+        run: systemctl restart roject