add API for tenant function (#2866)

### What problem does this PR solve?

feat: API access key management
https://github.com/infiniflow/ragflow/issues/2846
feat: Render markdown file with remark-loader
https://github.com/infiniflow/ragflow/issues/2846

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

api/db/services/document_service.py

@@ -362,7 +362,7 @@ class DocumentService(CommonService):
                 elif finished:
                     if d["parser_config"].get("raptor", {}).get("use_raptor") and d["progress_msg"].lower().find(" raptor")<0:
                         queue_raptor_tasks(d)
-                        prg *= 0.98
+                        prg = 0.98 * len(tsks)/(len(tsks)+1)
                         msg.append("------ RAPTOR -------")
                     else:
                         status = TaskStatus.DONE.value
@@ -379,7 +379,8 @@ class DocumentService(CommonService):
                     info["progress_msg"] = msg
                 cls.update_by_id(d["id"], info)
             except Exception as e:
-                stat_logger.error("fetch task exception:" + str(e))
+                if str(e).find("'0'") < 0:
+                    stat_logger.error("fetch task exception:" + str(e))
 
     @classmethod
     @DB.connection_context()