Nomad changes

.ai-rulez/domains/plugin-system/rules/plugin-testing.md

@@ -0,0 +1,10 @@
+---
+priority: high
+---
+
+- Mock plugin testing: create test doubles for unit tests
+- Real plugin testing: integration tests with actual backends
+- Thread safety tests: run concurrent plugin operations to detect race conditions
+- Performance baselines: measure and track plugin overhead vs direct calls
+- Test all error paths: invalid input, backend failure, timeout, resource exhaustion
+- Test plugin lifecycle: register, use, unregister, verify cleanup