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

src/rag_engine.py

@@ -94,6 +94,9 @@ class RAGEngine:
   return self.collection.count() == 0
 
  def add_documents(self, ids: List[str], texts: List[str], metadatas: Optional[List[Dict[str, Any]]] = None):
+  """
+  [C: tests/test_rag_engine.py:test_rag_engine_chroma]
+  """
   if not self.config.enabled or self.collection == "mock":
    return
   embeddings = self.embedding_provider.embed(texts)
@@ -202,6 +205,9 @@ class RAGEngine:
   return asyncio.run(_async_search_mcp())
 
  def search(self, query: str, top_k: int = 5) -> List[Dict[str, Any]]:
+  """
+  [C: tests/mock_concurrent_mma.py:main, tests/test_rag_engine.py:test_rag_engine_chroma]
+  """
   if not self.config.enabled:
    return []
   if self.config.vector_store.provider == 'mcp':
@@ -227,6 +233,9 @@ class RAGEngine:
   return ret
 
  def delete_documents(self, ids: List[str]):
+  """
+  [C: tests/test_rag_engine.py:test_rag_engine_chroma]
+  """
   if not self.config.enabled or self.collection == "mock":
    return
   self.collection.delete(ids=ids)
@@ -243,4 +252,4 @@ class RAGEngine:
   if not self.config.enabled or self.collection == "mock":
    return
   for path in file_paths:
-   self.collection.delete(where={"path": path})
+   self.collection.delete(where={"path": path})