Fix coveragerc-core to exclude all tests/cli/*.py

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: chrisguidry

.coveragerc-core

@@ -11,7 +11,7 @@ omit =
     **/conftest.py
     tests/_key_leak_checker.py
     tests/_container.py
-    tests/cli/test_*.py
+    tests/cli/*.py
 
 [report]
 exclude_also = ["\\.\\.\\.$"]