增加代码知识库；修复文档处理内容；增加API设置

rag-web-ui/backend/app/api/openapi/knowledge.py

@@ -9,6 +9,7 @@ from app.db.session import get_db
 from app.core.security import get_api_key_user
 from app.core.config import settings
 from app.services.embedding.embedding_factory import EmbeddingsFactory
+from app.services.model_config import ModelConfigService
 
 router = APIRouter()
 
@@ -36,7 +37,11 @@ def query_knowledge_base(
                 detail=f"Knowledge base {knowledge_base_id} not found",
             )
         
-        embeddings = EmbeddingsFactory.create()
+        try:
+            model_profile = ModelConfigService.require_active_config(db, current_user.id)
+        except ValueError as exc:
+            raise HTTPException(status_code=400, detail=str(exc)) from exc
+        embeddings = EmbeddingsFactory.create(model_profile=model_profile)
         
         vector_store = VectorStoreFactory.create(
             store_type=settings.VECTOR_STORE_TYPE,
@@ -56,5 +61,7 @@ def query_knowledge_base(
             
         return {"results": response}
         
+    except HTTPException:
+        raise
     except Exception as e:
-        raise HTTPException(status_code=500, detail=str(e))
+        raise HTTPException(status_code=500, detail=str(e))