Add comprehensive test suite for all new tools

pytest.ini

@@ -0,0 +1,7 @@
+[pytest]
+minversion = 7.0
+testpaths = tests
+python_files = test_*.py
+python_classes = Test*
+python_functions = test_*
+addopts = -v --tb=short

tests/__init__.py

@@ -0,0 +1,3 @@
+"""
+Test suite for MCP tools.
+"""

tests/conftest.py

@@ -1,8 +1,7 @@
+from __future__ import annotations
+
 import pytest
+import sys
 from pathlib import Path
 
-TEST_ROOT = Path(__file__).parent
+sys.path.insert(0, str(Path(__file__).parent.parent))
-
-@pytest.fixture
-def workspace(tmp_path):
-    return tmp_path