Remove npm-publish.yml, add Python 3.13 to CI, harden checkout permissions (#12)

- Remove .github/workflows/npm-publish.yml (Python repo, no npm package)
- Add Python 3.13 to CI test matrix
- Add persist-credentials: false to all checkout steps
- Add permissions: contents: read to ci.yml top level

Author: Coding-Dev-Tools

.github/workflows/ci.yml

@@ -6,15 +6,20 @@ on:
   pull_request:
     branches: [main]
 
+permissions:
+  contents: read
+
 jobs:
   test:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.10", "3.11", "3.12"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v6
+        with:
+          persist-credentials: false
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
@@ -30,4 +35,3 @@ jobs:
       - name: Run tests
         run: |
           python -m pytest tests/ -v --cov=src --cov-report=term-missing
-

.github/workflows/npm-publish.yml

@@ -22,6 +22,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@v6
+        with:
+          persist-credentials: false
 
       - name: Set up Python 3.11
         uses: actions/setup-python@v6
@@ -54,4 +56,3 @@ jobs:
           TWINE_PASSWORD: ${{ secrets.TEST_PYPI_API_TOKEN }}
         run: |
           twine upload --repository testpypi dist/* --verbose
-