enable pushing of built Docker images in GitHub Actions workflow

.gitea/workflows/build.yml

@@ -0,0 +1,44 @@
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Tag to build and push'
+        required: false
+        default: 'latest'
+  push:
+    tags:
+      - "v*"
+
+name: 🏗️✨ Build Workflow
+
+jobs:
+  Build:
+    name: 🖥️ 🔨 Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: 📖 🔍 Checkout Repository Code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+          submodules: 'true'
+
+      - name: 🔑 🔐 Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          registry: scr.siteworxpro.com
+          username: ${{ secrets.SITEWORX_USERNAME }}
+          password: ${{ secrets.SITEWORX_PASSWORD }}
+
+      - name: 🏗️ 🔧 Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: 🐳 🔨 Build Container
+        uses: docker/build-push-action@v6
+        with:
+          push: true
+          sbom: true
+          provenance: true
+          platforms: linux/arm64,linux/amd64
+          context: .
+          dockerfile: Dockerfile
+          tags: scr.siteworxpro.com/gun-manager:${{ gitea.ref_name }}

.gitignore

@@ -1 +1,2 @@
 .idea/
+data/

.gitmodules

@@ -1,6 +1,6 @@
 [submodule "backend"]
 	path = backend
-	url = https://gitea.siteworxpro.com/siteworxpro/gun-manager-backend.git
+	url = git@gitea.siteworxpro.com:siteworxpro/gun-manager-backend.git
 [submodule "frontend"]
 	path = frontend
-	url = https://gitea.siteworxpro.com/siteworxpro/gun-manager-frontend.git
+	url = git@gitea.siteworxpro.com:siteworxpro/gun-manager-frontend.git

README.md

@@ -0,0 +1,6 @@
+```shell
+docker run --rm \
+  -v $(pwd)/data:/data \
+  -p 8000:8000 \
+  scr.siteworxpro.com/gun-manager:v1.0.0 -database /data/gun_inventory.sqlite
+```