Readme, docs: recommend init command instead of start-mcp-server

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 Status of the `main` branch. Changes prior to the next official version change will appear here.
 
+* General:
+  - Added `serena init` command  
 * Fixes:
   - Fix reactivation of the same project restarting language servers #1280
 

README.md

@@ -178,24 +178,26 @@ https://github.com/user-attachments/assets/6eaa9aa1-610d-4723-a2d6-bf1e487ba753
 
 **Prerequisites**. Serena is managed by *uv*. If you don’t already have it, you need to [install uv](https://docs.astral.sh/uv/getting-started/installation/) before proceeding.
 
-> [!NOTE]
-> When using the language server backend, some additional dependencies to be installed for certain languages; see the [Language Support](https://oraios.github.io/serena/01-about/020_programming-languages.html) page for details.
-
-**Starting the MCP Server**. The easiest way to start the Serena MCP server is by running the latest version from GitHub using uvx:
+**Initialize Serena**. To initialize Serena, simply run:
 
 ```bash
-uvx -p 3.13 --from git+https://github.com/oraios/serena serena start-mcp-server
+uvx -p 3.13 --from git+https://github.com/oraios/serena serena init
 ```
 
-If this is the first time you are starting Serena, the necessary configuration files will be created, and 
-you should see the Serena dashboard appear. You can terminate the server by pressing Ctrl+C (multiple times, if necessary).
+This will create the global configuration file `~/.serena/config.yaml`.
+
+The default code intelligence backend for Serena is the free LSP backend. You can add `-b JetBrains` to the `init` command
+to set up the JetBrains as the default code intelligence backend instead, see [JetBrains Plugin page](https://oraios.github.io/serena/02-usage/025_jetbrains_plugin.html) for more details.
+
+
+> [!NOTE]
+> When using the language server backend, some additional dependencies to be installed for certain languages; 
+> see the [Language Support](https://oraios.github.io/serena/01-about/020_programming-languages.html) page for details.
+
 
 **Configuring Your Client**. To connect Serena to your preferred MCP client, you typically need to [configure a launch command in your client](https://oraios.github.io/serena/02-usage/030_clients.html).
 Follow the link for specific instructions on how to set up Serena for Claude Code, Codex, Claude Desktop, MCP-enabled IDEs and other clients (such as local and web-based GUIs). 
 
-**Switching to the JetBrains Backend**. The default code intelligence backend for Serena is the free LSP backend.
-For using the more powerful JetBrains backend, follow the instructions on the [JetBrains Plugin page](https://oraios.github.io/serena/02-usage/025_jetbrains_plugin.html).
-
 > [!TIP]
 > While getting started quickly is easy, Serena is a powerful toolkit with many configuration options.
 > We highly recommend reading through the [user guide](https://oraios.github.io/serena/02-usage/000_intro.html) to get the most out of Serena.

docs/02-usage/025_jetbrains_plugin.md

@@ -65,24 +65,22 @@ After installing the plugin, you need to configure Serena to use it.
 
 **Central Configuration**.
 
-If you ever executed Serena before, you will have the global Serena configuration file located at `~/.serena/serena_config.yml` 
-(`%USERPROFILE%\.serena\serena_config.yml` on Windows).
-
-If the configuration file does not exist, run
+You can run
 
 ```shell
-uvx -p 3.13 --from git+https://github.com/oraios/serena serena start-mcp-server
+uvx -p 3.13 --from git+https://github.com/oraios/serena serena init -b JetBrains
 ```
 
-(see [running Serena](020_running.md) for alternative options) to install all dependencies and create configuration files. Terminate the server with `Ctrl+C` after it has started.
+to set the default code intelligence backend to JetBrains in the global Serena configuration file.
 
-In your configuration, change the `language_backend` setting as follows:
+Alternatively, you can also manually edit the configuration file  `~/.serena/serena_config.yml` 
+(`%USERPROFILE%\.serena\serena_config.yml` on Windows) and set
 
 ```yaml
 language_backend: JetBrains
 ```
 
-*Note*: you can also use the button `Edit Global Serena Config` in the Serena MCP dashboard to open the config file in your default editor.
+Note that the file might not exist yet if you never executed Serena before.
 
 **Per-Instance Configuration**.
 The configuration setting in the global config file can be overridden on a