fix: switch to tag-only releases, drop CHANGELOG, use Codecov badge

.github/workflows/ci.yml

@@ -113,55 +113,3 @@ jobs:
             echo "Required jobs failed: lint=${{ needs.lint.result }}, test=${{ needs.test.result }}"
             exit 1
           fi
-
-  coverage-badge:
-    needs: test
-    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-    timeout-minutes: 5
-    steps:
-    - uses: actions/checkout@v4
-
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3.10"
-
-    - name: Install coverage
-      run: pip install "coverage[toml]"
-
-    - name: Download fast coverage data
-      uses: actions/download-artifact@v4
-      with:
-        name: coverage-data-fast
-        path: cov-fast
-
-    - name: Download slow coverage data
-      uses: actions/download-artifact@v4
-      with:
-        name: coverage-data-slow
-        path: cov-slow
-
-    - name: Combine coverage and generate JSON
-      run: |
-        cp cov-fast/.coverage .coverage.fast
-        cp cov-slow/.coverage .coverage.slow
-        coverage combine .coverage.fast .coverage.slow
-        coverage json -o coverage.json --include="src/*"
-
-    - name: Update coverage.json and push
-      run: |
-        if [ -f coverage.json ]; then
-          git config user.name "github-actions[bot]"
-          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git add coverage.json
-          if git diff --cached --quiet; then
-            echo "No coverage changes to commit"
-          else
-            git commit -m "chore: update coverage.json [skip ci]"
-            git pull --rebase
-            git push
-          fi
-        fi

.github/workflows/docs-ci.yml

@@ -52,10 +52,6 @@ jobs:
         run: |
           npm run docs:build
 
-      - name: Check changelog policy
-        run: |
-          python scripts/check_changelog_policy.py
-
       - name: Check release consistency
         run: |
           python scripts/check_release_consistency.py

.github/workflows/release.yml

@@ -47,5 +47,5 @@ jobs:
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          semantic-release version --push
+          semantic-release version --no-commit --push
           semantic-release publish