fix(okx): cache options balances and stop SSE from hammering exchange API

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/instance/templates/embed_shell.html

@@ -90,7 +90,7 @@ const ORDER_ENTRY_MODEL_CODE_TO_CATEGORY = {{ entry_model_code_to_category | toj
 <script src="/static/strategy_roll.js?v=6"></script>
 <script src="/static/key_monitor_form.js?v=2"></script>
 {% include 'embed_boot_scripts.html' %}
-<script src="/static/instance_live.js?v=2"></script>
-<script src="/static/instance_embed.js?v=11"></script>
+<script src="/static/instance_live.js?v=3"></script>
+<script src="/static/instance_embed.js?v=12"></script>
 </body>
 </html>