fix: add .js extensions in nostr-server.ts

- Add .js extensions to imports in nostr-server.ts
- Fix module imports for logger and websocket types
- Bump version to 0.3.7

Author: vveerrgg

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nostr-websocket-utils",
-  "version": "0.3.6",
+  "version": "0.3.7",
   "description": "Robust WebSocket utilities for Nostr applications with automatic reconnection, channel-based messaging, and type-safe handlers. Features heartbeat monitoring, message queueing, and comprehensive error handling.",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",

src/core/nostr-server.ts

@@ -1,7 +1,7 @@
 import { WebSocketServer, WebSocket } from 'ws';
 import { v4 as uuidv4 } from 'uuid';
-import { getLogger } from '../utils/logger';
-import { NostrWSServerSocket, NostrWSServerOptions, NostrWSServerMessage } from '../types/websocket';
+import { getLogger } from '../utils/logger.js';
+import { NostrWSServerSocket, NostrWSServerOptions, NostrWSServerMessage } from '../types/websocket.js';
 
 const logger = getLogger('NostrWSServer');