Add CI and Docker workflows for automated testing and deployment

- Introduced a CI workflow in `ci.yml` to automate linting, testing, and security checks using Ruff and Bandit.
- Added a Docker build and release workflow in `docker-build.yml` to automate image building and pushing to the Gitea Container Registry upon version tag pushes.
- Configured steps for checking out code, setting up Python, installing dependencies, and generating release notes.
- Enhanced project automation and deployment processes, improving overall development efficiency.

.gitea/workflows/ci.yml

@@ -0,0 +1,41 @@
+name: CI
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main, develop]
+
+jobs:
+  lint-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: https://gitea.com/actions/checkout@v4
+
+      - name: Set up Python 3.12
+        uses: https://gitea.com/actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install dependencies
+        run: |
+          pip install -r requirements.txt -r requirements-dev.txt
+
+      - name: Install lint and security tools
+        run: |
+          pip install ruff bandit
+
+      - name: Lint with Ruff
+        run: |
+          ruff check src tests
+
+      - name: Run tests
+        env:
+          PYTHONPATH: src
+        run: |
+          pytest tests/ -v
+
+      - name: Security check with Bandit
+        run: |
+          bandit -r src -ll

.gitea/workflows/docker-build.yml

@@ -0,0 +1,88 @@
+name: Docker Build and Release
+
+on:
+  push:
+    tags: ["v*"]
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    outputs:
+      tag: ${{ steps.meta.outputs.tag }}
+    steps:
+      - name: Checkout
+        uses: https://gitea.com/actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set image meta
+        id: meta
+        run: |
+          TAG="${GITHUB_REF#refs/tags/}"
+          echo "tag=$TAG" >> $GITHUB_OUTPUT
+
+      - name: Set registry host
+        id: registry
+        run: |
+          host="${GITHUB_SERVER_URL#https://}"
+          host="${host#http://}"
+          echo "host=$host" >> $GITHUB_OUTPUT
+
+      - name: Check REGISTRY_TOKEN
+        run: |
+          if [ -z "${{ secrets.REGISTRY_TOKEN }}" ]; then
+            echo "::error::REGISTRY_TOKEN secret is not set. Add it in repository or organization settings."
+            exit 1
+          fi
+
+      - name: Login to Gitea Container Registry
+        run: |
+          host="${{ steps.registry.outputs.host }}"
+          echo "${{ secrets.REGISTRY_TOKEN }}" | docker login "$host" -u "${{ github.actor }}" --password-stdin
+
+      - name: Build and push Docker image
+        run: |
+          host="${{ steps.registry.outputs.host }}"
+          repository=$(echo "${{ github.repository }}" | tr '[:upper:]' '[:lower:]')
+          IMAGE="$host/$repository"
+          TAG="${{ steps.meta.outputs.tag }}"
+          docker build -t "$IMAGE:$TAG" -t "$IMAGE:latest" .
+          docker push "$IMAGE:$TAG"
+          docker push "$IMAGE:latest"
+
+  release:
+    runs-on: ubuntu-latest
+    needs: build-and-push
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout
+        uses: https://gitea.com/actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Generate release notes
+        id: notes
+        run: |
+          TAG="${{ needs.build-and-push.outputs.tag }}"
+          PREV=""
+          for t in $(git tag -l --sort=-v:refname "v*"); do
+            [ "$t" = "$TAG" ] && continue
+            PREV="$t"
+            break
+          done
+          if [ -n "$PREV" ]; then
+            git log "$PREV..$TAG" --pretty=format:"- %s (%h)" --no-merges > release_notes.md
+          else
+            (git log -1 --pretty=format:"- %s (%h)" 2>/dev/null || echo "Initial release") > release_notes.md
+          fi
+
+      - name: Create Release
+        uses: https://gitea.com/actions/gitea-release-action@v1
+        with:
+          tag_name: ${{ needs.build-and-push.outputs.tag }}
+          body_path: release_notes.md