Implement InsertDataset and InsertMetadata in GO (#13883)

### What problem does this PR solve?

Implement InsertDataset and InsertMetadata in GO

new internal cli for go:

INSERT DATASET FROM FILE "file_name"
INSERT METADATA FROM FILE "file_name"

### Type of change

- [x] Refactoring

admin/client/parser.py

@@ -97,6 +97,8 @@ sql_command: login_user
            | search_on_datasets
            | get_chunk
            | list_chunks
+           | insert_dataset_from_file
+           | insert_metadata_from_file
            | create_chat_session
            | drop_chat_session
            | list_chat_sessions
@@ -207,10 +209,12 @@ DOC_META: "DOC_META"i
 CHUNK: "CHUNK"i
 CHUNKS: "CHUNKS"i
 GET: "GET"i
+INSERT: "INSERT"i
 PAGE: "PAGE"i
 SIZE: "SIZE"i
 KEYWORDS: "KEYWORDS"i
 AVAILABLE: "AVAILABLE"i
+FILE: "FILE"i
 
 login_user: LOGIN USER quoted_string ";"
 list_services: LIST SERVICES ";"
@@ -349,6 +353,10 @@ parse_dataset_docs: PARSE quoted_string OF DATASET quoted_string ";"
 parse_dataset_sync: PARSE DATASET quoted_string SYNC ";"
 parse_dataset_async: PARSE DATASET quoted_string ASYNC ";"
 
+// Internal CLI for GO
+insert_dataset_from_file: INSERT DATASET FROM FILE quoted_string ";"
+insert_metadata_from_file: INSERT METADATA FROM FILE quoted_string ";"
+
 identifier_list: identifier ("," identifier)*
 
 identifier: WORD
@@ -750,6 +758,14 @@ class RAGFlowCLITransformer(Transformer):
         chunk_id = items[2].children[0].strip("'\"")
         return {"type": "get_chunk", "chunk_id": chunk_id}
 
+    def insert_dataset_from_file(self, items):
+        file_path = items[4].children[0].strip("'\"")
+        return {"type": "insert_dataset_from_file", "file_path": file_path}
+
+    def insert_metadata_from_file(self, items):
+        file_path = items[4].children[0].strip("'\"")
+        return {"type": "insert_metadata_from_file", "file_path": file_path}
+
     def list_chunks(self, items):
         doc_id = items[4].children[0].strip("'\"")
         result = {"type": "list_chunks", "doc_id": doc_id}