Rename package scope to @xtr-dev and update references.

Updated the package name and scope in `package.json`, README, and source files for both server and client. This ensures consistency and aligns with the new namespace.

README.md

@@ -1,11 +1,11 @@
-# @rondevu/client
+# @xtr-dev/rondevu-client
 
 TypeScript client for interacting with the Rondevu peer signaling and discovery server. Provides a simple, type-safe API for WebRTC peer discovery and connection establishment.
 
 ## Installation
 
 ```bash
-npm install @rondevu/client
+npm install @xtr-dev/rondevu-client
 ```
 
 ## Usage
@@ -13,7 +13,7 @@ npm install @rondevu/client
 ### Basic Setup
 
 ```typescript
-import { RondevuClient } from '@rondevu/client';
+import { RondevuClient } from '@xtr-dev/rondevu-client';
 
 const client = new RondevuClient({
   baseUrl: 'https://rondevu.example.com',
@@ -197,7 +197,7 @@ import {
   PollRequest,
   Side,
   // ... and more
-} from '@rondevu/client';
+} from '@xtr-dev/rondevu-client';
 ```
 
 ## Node.js Usage
@@ -206,7 +206,7 @@ For Node.js environments (v18+), the built-in fetch is used automatically. For o
 
 ```typescript
 import fetch from 'node-fetch';
-import { RondevuClient } from '@rondevu/client';
+import { RondevuClient } from '@xtr-dev/rondevu-client';
 
 const client = new RondevuClient({
   baseUrl: 'https://rondevu.example.com',

package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@rondevu/client",
+  "name": "@xtr-dev/rondevu-client",
   "version": "1.0.0",
   "description": "TypeScript client for Rondevu peer signaling and discovery server",
   "main": "dist/index.js",

src/index.ts

@@ -1,9 +1,9 @@
 /**
- * @rondevu/client - TypeScript client for Rondevu peer signaling server
+ * TypeScript client for Rondevu peer signaling server
  *
  * @example
  * ```typescript
- * import { RondevuClient } from '@rondevu/client';
+ * import { RondevuClient } from '@xtr-dev/rondevu-client';
  *
  * const client = new RondevuClient({
  *   baseUrl: 'https://rondevu.example.com'