refactor(sdm): Global pass with refined 'External Only' SDM tags. Pruned redundant internal references and fixed indentation logic in injector. Verified full project compilation.

tests/test_tier4_interceptor.py

@@ -61,9 +61,10 @@ def test_run_powershell_optional_qa_callback() -> None:
     assert "EXIT CODE: 1" in result
 
 def test_end_to_end_tier4_integration(vlogger) -> None:
-  """1. Start a task that triggers a tool failure.
-     2. Ensure Tier 4 QA analysis is run.
-     3. Verify the analysis is merged into the next turn's prompt.
+  """
+  1. Start a task that triggers a tool failure.
+       2. Ensure Tier 4 QA analysis is run.
+       3. Verify the analysis is merged into the next turn's prompt.
   """
   # Trigger a send that results in a tool failure
   # (In reality, the tool loop handles this)
@@ -131,4 +132,4 @@ def test_gemini_provider_passes_qa_callback_to_run_script() -> None:
      qa_callback=qa_callback
     )
     # Verify _run_script received the qa_callback and patch_callback
-    mock_run_script.assert_called_with("dir", ".", qa_callback, None)
+    mock_run_script.assert_called_with("dir", ".", qa_callback, None)