Refactor: rename SimDUT, restructure DUT simulation and test flow

pytest.ini

@@ -0,0 +1,17 @@
+[pytest]
+# Add command-line options by default
+addopts = --tb=short --strict-markers --html=report.html --self-contained-html
+
+# Optional: set default HTML report location (if you use pytest-html)
+# addopts = --tb=short --strict-markers --html=report.html
+
+# Markers you plan to use in test code
+markers =
+    sim: mark test to run in simulation mode only
+    hardware: mark test that requires real hardware
+    slow: mark test as slow (e.g., long soak or ramp tests)
+    sanity: mark test as quick smoke/sanity check
+
+# Logging settings (optional)
+log_cli = true
+log_level = INFO