Add Gitea Actions CI/CD workflow

.gitea/workflows/build.yaml

@@ -0,0 +1,31 @@
+name: Build Docker Image
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Gitea Registry
+        uses: docker/login-action@v3
+        with:
+          registry: gitea.dsrptlab.com
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
+
+      - name: Build and Push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: gitea.dsrptlab.com/optovia/billing/billing:latest
+
+      - name: Deploy to Dokploy
+        run: curl -X POST ${{ secrets.DOKPLOY_WEBHOOK }}