Initial upload: EnvSchema v0.1.0 with CI/CD workflow

.gitea/workflows/ci.yml

@@ -0,0 +1,38 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Install dependencies
+        run: |
+          pip install -e ".[dev]"
+
+      - name: Run unit tests
+        run: pytest tests/unit/ -v
+
+      - name: Run integration tests
+        run: pytest tests/integration/ -v
+
+      - name: Check code formatting
+        run: |
+          pip install ruff
+          ruff check envschema/
+
+      - name: Upload coverage
+        run: |
+          pip install pytest-cov
+          pytest --cov=envschema --cov-report=term-missing