Fix CI workflow: replace snip --help with python -c to verify CLI works

.gitea/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
       - name: Verify package
         run: |
           python -c "from snip import cli; print('Import successful')"
-          snip --help
+          python -c "from snip.cli import cli; cli(['--help'])"
 
   lint:
     runs-on: ubuntu-latest
@@ -45,4 +45,4 @@ jobs:
         run: pip install ruff
           
       - name: Run ruff
-        run: ruff check .
+        run: ruff check .