chore(devcontainer): update docs

docs/guide/devcontainer.md

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+# Devcontainer
+
+You'll need to set up a development environment if you want to develop on this project.
+
+## Prerequisites
+
+- Docker
+- VSCode (Cursor)
+- Git
+
+## Setup
+
+1. Open the Command Palette in VSCode (Cursor)
+  - Mac: `Cmd`+`Shift`+`P`
+  - Windows: `Ctrl`+`Shift`+`P`
+2. Search for `Dev Containers: Rebuild and Reopen in Container` and click on it
+3. Wait for the container to start
+4. Open the Command Palette in VSCode (Cursor)
+  - Mac: `Cmd`+`Shift`+`P`
+  - Windows: `Ctrl`+`Shift`+`P`
+5. Select Tasks: Run Task -> Start all services
+6. Wait for the services to start
+
+## Ports
+
+| Port  | Service          |
+|-------|------------------|
+| 3002  | App              |
+| 3003  | Documentation    |
+| 9000  | API Backend      |
+
+
+## Services
+
+- nginx-ui
+- nginx-ui-2
+- casdoor
+- chaltestsrv
+- pebble
+
+## Multi-node development
+
+Add the following enviroment in the main node:
+
+```
+name: nginx-ui-2
+url: http://nginx-ui-2
+token: nginx-ui-2
+```
+