Add Gitea Actions CI/CD pipeline for automated testing and container builds

- Add .gitea/workflows/ci-cd.yaml with test and build-push jobs
- Tests run on every push to main, builds trigger on v* tags
- Builds both engine and UI Docker images to Gitea container registry
- Update Dockerfile to Python 3.12 (matches pyproject.toml requirement)
- Requires REGISTRY_USERNAME and REGISTRY_PASSWORD secrets in Gitea

.gitea/workflows/ci-cd.yaml

@@ -0,0 +1,92 @@
+name: CI/CD Pipeline
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - 'v*'
+
+env:
+  REGISTRY: gitea.thefetagroup.com
+  IMAGE_NAME: bnair/cryptobot
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    container:
+      image: python:3.12-slim
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install system dependencies
+        run: |
+          apt-get update
+          apt-get install -y --no-install-recommends build-essential wget
+          wget -q http://prdownloads.sourceforge.net/ta-lib/ta-lib-0.4.0-src.tar.gz
+          tar -xzf ta-lib-0.4.0-src.tar.gz
+          cd ta-lib && ./configure --prefix=/usr && make && make install
+          cd .. && rm -rf ta-lib ta-lib-0.4.0-src.tar.gz
+
+      - name: Install Python dependencies
+        run: |
+          pip install --upgrade pip
+          pip install -e ".[dev]"
+
+      - name: Run linting
+        run: ruff check .
+
+      - name: Run type checking
+        run: mypy src/
+
+      - name: Run tests
+        run: pytest --cov=tradefinder --cov-report=term-missing
+
+  build-and-push:
+    runs-on: ubuntu-latest
+    needs: test
+    if: startsWith(github.ref, 'refs/tags/v')
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Extract version from tag
+        id: version
+        run: echo "VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
+
+      - name: Login to Gitea Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+
+      - name: Build and push engine image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          target: engine
+          push: true
+          tags: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.version.outputs.VERSION }}
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Build and push UI image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          target: ui
+          push: true
+          tags: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-ui:${{ steps.version.outputs.VERSION }}
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-ui:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max