Fix nav spot tickers: register JS in static allowlist and harden price fetch.

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

lib/instance/instance_static_lib.py

@@ -35,6 +35,7 @@ _COMMON_STATIC_ASSETS: dict[str, str] = {
     "instance_dashboard.js": "application/javascript; charset=utf-8",
     "account_ledger.js": "application/javascript; charset=utf-8",
     "options_expiry_countdown.js": "application/javascript; charset=utf-8",
+    "nav_spot_tickers.js": "application/javascript; charset=utf-8",
     "options_panel.js": "application/javascript; charset=utf-8",
     "options_settings.js": "application/javascript; charset=utf-8",
     "options_position_cards.js": "application/javascript; charset=utf-8",

lib/instance/templates/embed_shell.html

@@ -149,7 +149,7 @@ const ORDER_ENTRY_MODEL_CODE_TO_CATEGORY = {{ entry_model_code_to_category | toj
 <script src="/static/instance_stats.js?v=5"></script>
 {% include 'embed_boot_scripts.html' %}
 <script src="/static/options_expiry_countdown.js?v=1"></script>
-<script src="/static/nav_spot_tickers.js?v=1"></script>
+<script src="/static/nav_spot_tickers.js?v=2"></script>
 <script src="/static/instance_dashboard.js?v=5"></script>
 <script src="/static/account_ledger.js?v=1"></script>
 <script>

lib/instance/templates/index.html

@@ -1830,7 +1830,7 @@ tickOrderHoldDurations();
 setInterval(refreshPriceSnapshotConditional, {{ price_refresh_seconds * 1000 }});
 </script>
 <script src="/static/options_expiry_countdown.js?v=1"></script>
-<script src="/static/nav_spot_tickers.js?v=1"></script>
+<script src="/static/nav_spot_tickers.js?v=2"></script>
 <script src="/static/instance_dashboard.js?v=5"></script>
 <script src="/static/account_ledger.js?v=1"></script>
 <script>