Add CI/CD workflow for cleanmedia

- Adds a GitHub Actions workflow for linting, testing, and deployment.
- Uses `uv` for environment management and dependency installation.
- Configures Ruff, Mypy, and Pytest for code quality and testing.
- Implements Docker Buildx for building and pushing to GHCR.
- Adds a CI badge to the README.
- Deploys to GHCR only on pushes to the master branch.

.github/workflows/ci.yml

@@ -0,0 +1,62 @@
+name: CI + Deploy to GHCR
+
+on:
+  push:
+    branches:
+      - '**'
+  pull_request:
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install uv
+        run: |
+          curl -LsSf https://astral.sh/uv/install.sh | sh
+          echo "$HOME/.cargo/bin" >> $GITHUB_PATH
+
+      - name: Lint with Ruff & Mypy
+        run: |
+          uv venv .venv
+          source .venv/bin/activate
+          uv run ruff check
+          uv run ruff format --check
+          uv run mypy .
+
+  test:
+    runs-on: ubuntu-latest
+    needs: lint
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install uv
+        run: |
+          curl -LsSf https://astral.sh/uv/install.sh | sh
+          echo "$HOME/.cargo/bin" >> $GITHUB_PATH
+
+      - name: Run tests
+        run: |
+          uv venv .venv
+          source .venv/bin/activate
+          uv run pytest -v --cov=. --cov-report=xml
+
+  deploy:
+    runs-on: ubuntu-latest
+    needs: test
+    if: github.ref == 'refs/heads/master'
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Log in to GHCR
+        run: echo "${{ secrets.REPOSITORY_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Build and push to GHCR
+        run: |
+          docker buildx build --push \
+            --tag ghcr.io/${{ github.repository_owner }}/cleanmedia:latest \
+            .

README.md

@@ -1,5 +1,6 @@
 # Cleanmedia
 [![codecov](https://codecov.io/gl/rogs/cleanmedia/graph/badge.svg?token=CXOM5OQ76L)](https://codecov.io/gl/rogs/cleanmedia)
+[![CI](https://git.rogs.me/rogs/cleanmedia/actions/workflows/ci.yml/badge.svg)](https://git.rogs.me/rogs/cleanmedia/actions)
 
 <p align="center">
   <img src="https://gitlab.com/uploads/-/system/project/avatar/64971838/logo.png" alt="cleanmedia"/>