fix(testing): clear get_cached_data_with_strategy_calls in MockCacheManager.reset()

reset() cleared get_calls/set_calls/delete_calls but not the newer
get_cached_data_with_strategy_calls tracker, so a reused mock (e.g. across
test cases sharing a fixture) retained stale strategy-call records after
reset().

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

src/plugin_system/testing/mocks.py

@@ -137,6 +137,7 @@ class MockCacheManager:
         self.get_calls = []
         self.set_calls = []
         self.delete_calls = []
+        self.get_cached_data_with_strategy_calls = []
 
 
 class MockConfigManager:

test/test_testing_mocks.py

@@ -37,3 +37,9 @@ class TestMockCacheManagerStrategyMethod:
         cm = MockCacheManager()
         cm.save_cache("standings_nfl", {"teams": ["KC", "BUF"]})
         assert cm.get_cached_data_with_strategy("standings_nfl") == {"teams": ["KC", "BUF"]}
+
+    def test_reset_clears_strategy_call_tracking(self):
+        cm = MockCacheManager()
+        cm.get_cached_data_with_strategy("k", "sports_live")
+        cm.reset()
+        assert cm.get_cached_data_with_strategy_calls == []