### What problem does this PR solve?

Issue link:#350

### Type of change

- [x] Refactoring

### What problem does this PR solve?

![image](https://github.com/infiniflow/ragflow/assets/106524776/56eec972-e92a-4cd2-92cc-4c20ba478a52)

- remove version top-level element in the compose.yml file
when use command `docker compose -f docker-compose-CN.yml up -d` ,it
will waring,[maybe it appear after
v25,5](https://github.com/mailcow/mailcow-dockerized/issues/5797#issuecomment-2011349228)

![image](https://github.com/infiniflow/ragflow/assets/106524776/e42ebfb7-d51e-4423-b6dd-3a7568a6be4f)

ref to
https://docs.docker.com/compose/intro/history/#docker-compose-cli-versioning
> Version one of the Docker Compose command-line binary was first
released in 2014. It was written in Python, and is invoked with
docker-compose. Typically, Compose V1 projects include a top-level
version element in the compose.yml file, with values ranging from 2.0 to
3.8, which refer to the specific [file
formats](https://docs.docker.com/compose/intro/history/#compose-file-format-versioning).

> Version two of the Docker Compose command-line binary was announced in
2020, is written in Go, and is invoked with docker compose. Compose V2
ignores the version top-level element in the compose.yml file.
 
Also in `README.MD` show `Docker >= 24.0.0 & Docker Compose >= v2.26.1`.
so i want to remove the version.

### Type of change

- [x] Other (please describe):
remove warning

### What problem does this PR solve?


Issue link:#350

### Type of change

- [x] Refactoring

### What problem does this PR solve?

Issue link:#299

### Type of change

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

### What problem does this PR solve?

Issue link:#221

### Type of change

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

### 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._

Issue link:#[[Link the issue
here](https://github.com/infiniflow/ragflow/issues/226)]

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

* support snapshot download from local

* let snapshot download from local

* Refine README

* refine README

* refine README

* fix position extraction bug

* remove delimiter for naive parser

* feat: add nginx.conf

* feat: modify the root path of the web

* clean rust version project

* clean rust version project

* build python version rag-flow

* add field progress msg into docinfo; add file processing procedure

* go through upload, create kb, add doc to kb

* smoke test for all API

* smoke test for all API

* add field progress msg into docinfo; add file processing procedure

* go through upload, create kb, add doc to kb

* add docker compose

* add docker compose