ci(release): integrate python-semantic-release for automated releases

Add semantic release config to pyproject.toml and a CD workflow that
triggers after CI passes on main. Automates version bumping, changelog
generation, git tagging, and GitHub Release creation.

Author: igrybkov

.github/workflows/cd.yml

@@ -0,0 +1,43 @@
+name: CD
+
+on:
+  workflow_run:
+    workflows: ["CI"]
+    types: [completed]
+    branches: [main]
+
+permissions:
+  contents: read
+
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    if: >-
+      github.event.workflow_run.conclusion == 'success' &&
+      github.event.workflow_run.event == 'push'
+    concurrency:
+      group: release-${{ github.ref_name }}
+      cancel-in-progress: false
+    permissions:
+      contents: write
+      id-token: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.ref_name }}
+          fetch-depth: 0
+      - run: git reset --hard ${{ github.event.workflow_run.head_sha }}
+      - uses: astral-sh/setup-uv@v4
+      - run: uv python install 3.12
+      - id: release
+        uses: python-semantic-release/python-semantic-release@v10.5.3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          git_committer_name: "github-actions"
+          git_committer_email: "actions@users.noreply.github.com"
+      - uses: python-semantic-release/publish-action@v10.5.3
+        if: steps.release.outputs.released == 'true'
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          tag: ${{ steps.release.outputs.tag }}

pyproject.toml

@@ -75,3 +75,32 @@ ignore = [
 [tool.ruff.format]
 quote-style = "double"
 indent-style = "space"
+
+[tool.semantic_release]
+commit_parser = "conventional"
+allow_zero_version = true
+tag_format = "v{version}"
+build_command = "uv build"
+version_variables = [
+    "src/omnifocus_mcp/__init__.py:__version__",
+]
+commit_message = "chore(release): v{version} [skip ci]"
+
+[tool.semantic_release.changelog]
+mode = "update"
+exclude_commit_patterns = [
+    '''Merge pull request.*''',
+    '''chore\(deps\):.*''',
+]
+
+[tool.semantic_release.changelog.default_templates]
+changelog_file = "CHANGELOG.md"
+output_format = "md"
+mask_initial_release = false
+
+[tool.semantic_release.remote]
+type = "github"
+
+[tool.semantic_release.publish]
+upload_to_vcs_release = true
+dist_glob_patterns = ["dist/*"]