Use uv run for consistent command execution

Simplify CI by using 'uv run' instead of activating virtual
environment. This keeps commands consistent with local development.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: alingse

.github/workflows/ci.yml

@@ -21,12 +21,11 @@ jobs:
           curl -LsSf https://astral.sh/uv/install.sh | sh
           echo "$HOME/.local/bin" >> $GITHUB_PATH
       - name: Install dependencies
-        run: |
-          uv pip install --system -e ".[dev]"
+        run: uv pip install -e ".[dev]"
       - name: Run ruff
-        run: ruff check .
+        run: uv run ruff check .
       - name: Run mypy
-        run: mypy jsoncsv
+        run: uv run mypy jsoncsv
 
   test:
     name: Test (Python ${{ matrix.python-version }})
@@ -44,10 +43,9 @@ jobs:
           curl -LsSf https://astral.sh/uv/install.sh | sh
           echo "$HOME/.local/bin" >> $GITHUB_PATH
       - name: Install dependencies
-        run: |
-          uv pip install --system -e ".[dev]"
+        run: uv pip install -e ".[dev]"
       - name: Run tests
-        run: pytest --cov=jsoncsv --cov-report=xml
+        run: uv run pytest --cov=jsoncsv --cov-report=xml
       - name: Upload coverage
         uses: codecov/codecov-action@v4
         with:
@@ -68,8 +66,7 @@ jobs:
           echo "$HOME/.local/bin" >> $GITHUB_PATH
       - name: Build package
         run: |
-          uv pip install --system build
-          uv pip install --system twine
-          python -m build
+          uv pip install build twine
+          uv run python -m build
       - name: Check package
-        run: twine check dist/*
+        run: uv run twine check dist/*