chore(ci): exclude ui/ from Sonar coverage measurement (no UI test suite)

Author: aksOps

sonar-project.properties

@@ -14,8 +14,10 @@ sonar.python.version=3.11
 sonar.exclusions=dist/**,scripts/**,docs/**,.venv/**,incidents/**
 sonar.test.exclusions=tests/fixtures/**
 
-# Coverage exclusions
-sonar.coverage.exclusions=src/orchestrator/__init__.py
+# Coverage exclusions — UI is excluded because Streamlit rendering is exercised
+# manually in a browser, not by the unit-test suite. Coverage gates apply to
+# the orchestrator core (src/orchestrator/) only.
+sonar.coverage.exclusions=src/orchestrator/__init__.py,ui/**
 
 # Suppress python:S7503 (async-without-await) for framework-driven async signatures.
 # LangGraph nodes and FastMCP tool handlers MUST be `async def` even when their