Update app to use envs for server info

app/client.py

@@ -1,15 +1,16 @@
 import asyncio
 import websockets
 import json
-import uuid # To generate a unique client ID
+import uuid
+import os
 from drb_cdb_api import DRBCDBAPI, ConfigGenerator
 from server_api import RadioAPIClient
 from enum import Enum
 
 # --- Client Configuration ---
-SERVER_WS_URI = "ws://localhost:8765"
-SERVER_API_URL = "http://localhost:5000"
-CLIENT_API_URL = "http://localhost:8001"
+SERVER_WS_URI = os.getenv("SERVER_WS_URI", "ws://localhost:8765")
+SERVER_API_URL = os.getenv("SERVER_API_URL", "http://localhost:5000")
+CLIENT_API_URL = os.getenv("CLIENT_API_URL", "http://localhost:8001")
 # Generate or define a unique ID for THIS client instance
 # In a real app, this might come from config or a login process
 CLIENT_ID = f"client-{uuid.uuid4().hex[:8]}" # TODO - Implement persistent ID