Merge branch 'feature/rag2' into develop

* feature/rag2:
  [add] batch add chunk for v1
  [fix] index_not_found_exception
  [fix] delete chunk refresh index
  [fix] es vector
  [fix] file upload
  no message
  [add] import qa chunks
  [add] task log
  [fix] qa cache
  [add] batch chunk.  qa_prompt set
  [modify] rag qa chunk

api/app/core/config.py

@@ -98,6 +98,7 @@ class Settings:
     # File Upload
     MAX_FILE_SIZE: int = int(os.getenv("MAX_FILE_SIZE", "52428800"))
     MAX_FILE_COUNT: int = int(os.getenv("MAX_FILE_COUNT", "20"))
+    MAX_CHUNK_BATCH_SIZE: int = int(os.getenv("MAX_CHUNK_BATCH_SIZE", "8"))
     FILE_PATH: str = os.getenv("FILE_PATH", "/files")
     FILE_URL_EXPIRES: int = int(os.getenv("FILE_URL_EXPIRES", "3600"))