feat(workflows): add GitHub Actions workflows for publishing and testing

- Create a publish workflow that triggers on version tag pushes,
  installs dependencies, runs tests, builds the package, and publishes
  to PyPI.
- Create a test workflow that triggers on pushes and pull requests to
  main and develop branches, sets up Python, installs dependencies,
  runs linting, type checking, and tests with coverage.

Author: tumf

.github/workflows/publish.yml

@@ -0,0 +1,69 @@
+name: Publish
+on:
+  push:
+    tags:
+      - "v*"
+    strategy:
+      matrix:
+        python-version: ["3.11"]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install uv
+        run: |
+          python -m pip install --upgrade pip
+          pip install uv
+
+      - name: Install dev/test dependencies
+        run: |
+          pip install -e ".[dev]"
+          pip install -e ".[test]"
+
+      - name: Run tests
+        run: |
+          make check
+
+  publish:
+    needs: test
+    runs-on: ubuntu-latest
+    environment: release
+    permissions:
+      id-token: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Update version from tag
+        run: |
+          # Strip 'v' prefix from tag and update version.py
+          VERSION=${GITHUB_REF#refs/tags/v}
+          echo "__version__ = \"${VERSION}\"" > mcp_shell_server/version.py
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install uv
+        run: |
+          python -m pip install --upgrade pip
+          pip install uv
+
+      - name: Build package
+        run: |
+          uv build
+
+      - name: Publish to PyPI
+        env:
+          PYPI_TOKEN: ${{ secrets.PYPI_TOKEN }}
+        run: |
+          uv publish --token $PYPI_TOKEN

.github/workflows/test.yml

@@ -0,0 +1,45 @@
+name: Test
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main, develop]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.11"]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install uv
+        run: |
+          python -m pip install --upgrade pip
+          pip install uv
+
+      - name: Install dev/test dependencies
+        run: |
+          pip install -e ".[dev]"
+          pip install -e ".[test]"
+
+      - name: Run lint and typecheck
+        run: |
+          make lint typecheck
+
+      - name: Run tests with coverage
+        run: |
+          pytest --cov --cov-report=xml
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}