feat: init epub audit tool (distroless/python)

- Implemented 'audit_epubs.py' using standard libraries (zipfile, xml.etree) for high performance.
- Created optimized Dockerfile based on 'gcr.io/distroless/python3-debian12' for minimal security attack surface.
- Added strict metadata validation rules.
- Included CI/CD workflow for Gitea Actions.
- Added comprehensive README.md.

.gitea/workflows/package.yaml

@@ -0,0 +1,35 @@
+name: 🚀 Docker Build and Push
+
+on: [push]
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 📥 Checkout code
+        uses: https://github.com/actions/checkout@v4
+
+      - name: 🛠️ Set up Docker Buildx
+        uses: https://github.com/docker/setup-buildx-action@v3
+
+      - name: 🔐 Login to Gitea Registry
+        uses: https://github.com/docker/login-action@v3
+        with:
+          registry: gitea.killinger.fr
+          username: maxime.killinger
+          password: ${{ secrets.DOCKER_TOKEN }}
+
+      - name: 📦 Build and push Docker image
+        uses: https://github.com/docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: |
+            gitea.killinger.fr/maxime.killinger/epub-audit:${{ github.ref_name == 'main' && 'latest' || github.ref_name }}
+
+      - name: 🔔 Trigger Watchtower
+        if: github.ref == 'refs/heads/main'
+        env:
+          TOKEN: ${{ secrets.WATCHTOWER_TOKEN }}
+        run: |
+          curl -X GET -H "Authorization: Bearer $TOKEN" http://192.168.1.118:3026/v1/update