chat: update development instructions in the readme

Author: hugodutka

chat/README.md

@@ -4,40 +4,22 @@ A simple ChatGPT-like interface for AgentAPI. It's a demo showcasing how to use
 
 ## Development Setup
 
-1. Ensure the AgentAPI backend server is running on `localhost:3284`
+1. Ensure the AgentAPI backend server is running on `localhost:3284`. You can run it from the root of the repository with e.g.
+
+```bash
+go run main.go server -- claude
+```
 
 2. Install dependencies:
 
    ```bash
-   npm install
+   bun install
    ```
 
 3. Start the development server:
 
    ```bash
-   npm run dev
+   bun run dev
    ```
 
-4. Open [http://localhost:3000](http://localhost:3000) in your browser
-
-## Static Build for Hosting
-
-This application can be built as a static site for deployment to any static web hosting service.
-
-### Building the Static Site
-
-```bash
-# Generate the static export
-npm run export
-```
-
-This will create a static build in the `out` directory, which can be deployed to any static hosting service.
-
-### Testing the Static Build Locally
-
-```bash
-# Serve the static files locally
-npm run serve-static
-```
-
-This will start a local server to test the static build.
+4. Open <http://localhost:3000/chat/?url=http://localhost:3284> in your browser