Fix mcp server startup failure

.gitattributes

@@ -1 +1,2 @@
-*.sh text eol=lf
+*.sh text eol=lf
+docker/entrypoint.sh text eol=lf executable

docker/docker-compose.yml

@@ -32,6 +32,7 @@ services:
       - ./nginx/nginx.conf:/etc/nginx/nginx.conf
       - ../history_data_agent:/ragflow/history_data_agent
       - ./service_conf.yaml.template:/ragflow/conf/service_conf.yaml.template
+      - ./entrypoint.sh:/ragflow/entrypoint.sh
 
     env_file: .env
     environment:

docs/develop/mcp.md

@@ -63,7 +63,7 @@ Here are three augments required, the first two,`host` and `port`, are self-expl
 
 Building a standalone MCP server image is straightforward and easy, so we just proposed a way to launch it with RAGFlow server here.
 
-#### Alongside RAGFlow
+#### Alongside RAGFlow {#alongside_ragflow}
 
 As MCP server is an extra and optional component of RAGFlow server, we consume that not everybody going to use it. Thus, it is disable by default.
 To enable it, simply find `docker/docker-compose.yml` to uncomment `services.ragflow.command` section.
@@ -81,10 +81,26 @@ services:
       - --mcp-base-url=http://127.0.0.1:9380
       - --mcp-script-path=/ragflow/mcp/server/server.py
       - --mcp-mode=self-host # `self-host` or `host`
-      - --mcp-host-api-key="ragflow-xxxxxxx" # only need to privide when mode is `self-host`
+      - --mcp-host-api-key=ragflow-xxxxxxx # only need to privide when mode is `self-host` and use bare string without quotation marks here.
 ```
 
-Then launch it normally `docker compose -f docker-compose.yml`.
+To troubleshoot, launch the service in the foreground using `docker compose -f docker-compose.yml`.
+
+### For those upgrading from versions before v0.18.0
+
+1. Get all MCP related files ready.
+   1. copy `mcp/` directory to local.
+   1. copy `docker/docker-compose.yml` to local.
+   1. copy `docker/entrypoint.sh` to local.
+   1. resolve necessary dependencies via `uv`.
+      - simply run `uv add mcp` if it works for you. Or:
+      - copy `pyproject.toml` and run `uv sync --python 3.10 --all-extras`.
+1. Change `docker-compose.yml` to enable MCP as it is disable by default, [see last section](#alongside_ragflow).
+1. Launch the service with `docker compose -f docker-compose.yml up -d`
+
+### Check the MCP server status
+
+Checking logs of RAGFlow server with `docker logs ragflow-server`. If you see the MCP server ASCII art there, it means all is OK!
 
 ```bash
 ragflow-server  | Starting MCP Server on 0.0.0.0:9382 with base URL http://127.0.0.1:9380...