Fix settings tab 500 and env config grouping in UI

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

lib/instance/templates/display_prefs_panel.html

@@ -8,7 +8,7 @@
         <div class="display-prefs-group">
             <h3 class="settings-subcard-title">{{ group.group }}</h3>
             <div class="display-prefs-checks">
-                {% for item in group.keys %}
+                {% for item in group.items %}
                 <label class="chk-label">
                     <input type="checkbox" data-pref-key="{{ item.key }}"{% if display.get(item.key, true) %} checked{% endif %}>
                     {{ item.label }}

lib/instance/templates/embed_shell.html

@@ -103,8 +103,8 @@ const ORDER_ENTRY_MODEL_CODE_TO_CATEGORY = {{ entry_model_code_to_category | toj
 <script>
 window.__INSTANCE_DISPLAY__ = {{ display | tojson }};
 </script>
-<script src="/static/instance_settings_prefs.js?v=3"></script>
+<script src="/static/instance_settings_prefs.js?v=4"></script>
 <script src="/static/instance_live.js?v=4"></script>
-<script src="/static/instance_embed.js?v=18"></script>
+<script src="/static/instance_embed.js?v=19"></script>
 </body>
 </html>

lib/instance/templates/index.html

@@ -2038,6 +2038,6 @@ setInterval(refreshPriceSnapshotConditional, {{ price_refresh_seconds * 1000 }})
 <script>
 window.__INSTANCE_DISPLAY__ = {{ display | tojson }};
 </script>
-<script src="/static/instance_settings_prefs.js?v=3"></script>
+<script src="/static/instance_settings_prefs.js?v=4"></script>
 </body>
 </html>