Storage: Rename all the variables about get file to storage from minio. (#2497)

https://github.com/infiniflow/ragflow/issues/2496

### What problem does this PR solve?

_Briefly describe what this PR aims to solve. Include background context
that will help reviewers understand the purpose of the PR._

### Type of change

- [ ] Bug Fix (non-breaking change which fixes an issue)
- [ ] New Feature (non-breaking change which adds functionality)
- [ ] Documentation Update
- [x] Refactoring
- [ ] Performance Improvement
- [ ] Other (please describe):

api/apps/sdk/doc.py

@@ -286,7 +286,7 @@ def download_document(document_id,tenant_id):
                                          code=RetCode.ARGUMENT_ERROR)
 
         # The process of downloading
-        doc_id, doc_location = File2DocumentService.get_minio_address(doc_id=document_id)  # minio address
+        doc_id, doc_location = File2DocumentService.get_storage_address(doc_id=document_id)  # minio address
         file_stream = STORAGE_IMPL.get(doc_id, doc_location)
         if not file_stream:
             return construct_json_result(message="This file is empty.", code=RetCode.DATA_ERROR)
@@ -373,7 +373,7 @@ def rm(tenant_id):
             if not tenant_id:
                 return get_data_error_result(retmsg="Tenant not found!")
 
-            b, n = File2DocumentService.get_minio_address(doc_id=doc_id)
+            b, n = File2DocumentService.get_storage_address(doc_id=doc_id)
 
             if not DocumentService.remove_document(doc, tenant_id):
                 return get_data_error_result(
@@ -438,7 +438,7 @@ def run(tenant_id):
                 e, doc = DocumentService.get_by_id(id)
                 doc = doc.to_dict()
                 doc["tenant_id"] = tenant_id
-                bucket, name = File2DocumentService.get_minio_address(doc_id=doc["id"])
+                bucket, name = File2DocumentService.get_storage_address(doc_id=doc["id"])
                 queue_tasks(doc, bucket, name)
 
         return get_json_result(data=True)