chore: добавить CI/CD для прод-деплоя

- добавлены Gitea workflows для CI и ручного CD

- настроен prod compose для запуска за reverse proxy

- добавлена публикация Caddy image в Container Registry

- обновлена документация по CI/CD и prod-сети

.gitea/workflows/ci.yml

@@ -0,0 +1,75 @@
+name: CI
+
+on:
+  push:
+    branches: [main, master, dev]
+  pull_request:
+    branches: [main, master, dev]
+  workflow_dispatch:
+
+jobs:
+  e2e:
+    runs-on: ubuntu-latest
+    if: github.event_name != 'push' || !contains(github.event.head_commit.message, '[skip ci]')
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Проверка Docker Compose конфигурации
+        run: docker compose -f docker-compose.test.yml config
+
+      - name: E2E тесты кеша
+        run: ./scripts/test-e2e.sh
+
+  docker:
+    runs-on: ubuntu-latest
+    needs: e2e
+    if: >
+      github.event_name == 'push' &&
+      (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/master') &&
+      !contains(github.event.head_commit.message, '[skip ci]')
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Setup variables
+        run: |
+          DOCKER_REGISTRY=$(echo "${{ gitea.server_url }}" | sed -E 's|^https?://||')
+          echo "DOCKER_REGISTRY=$DOCKER_REGISTRY" >> "$GITHUB_ENV"
+          REGISTRY_IMAGE="$DOCKER_REGISTRY/$(echo "${{ github.repository }}" | tr '[:upper:]' '[:lower:]')"
+          echo "REGISTRY_IMAGE=$REGISTRY_IMAGE" >> "$GITHUB_ENV"
+
+      - name: Login to Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.DOCKER_REGISTRY }}
+          username: ${{ secrets.CR_USER }}
+          password: ${{ secrets.CR_TOKEN }}
+
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY_IMAGE }}
+          tags: |
+            type=ref,event=branch
+            type=sha,prefix=
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Build and push Caddy image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile.caddy
+          platforms: linux/amd64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          provenance: false
+          sbom: false