Fix OKX header trade stats stuck at zero after settings shell load.

Always SSR records summary on embed shell (including settings/risk/env), and refresh total/win-rate/PL ratio via account_snapshot so soft-nav cannot leave the strip blank.

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

tests/test_instance_embed_context_lib.py

@@ -17,6 +17,14 @@ def test_embed_shell_trade_summary_only():
     assert plan.records_rows is False
 
 
+def test_embed_shell_settings_still_loads_header_summary():
+    plan = embed_render_plan("settings", "shell")
+    assert plan.records_summary is True
+    assert plan.records_rows is False
+    plan_risk = embed_render_plan("risk_policy", "shell")
+    assert plan_risk.records_summary is True
+
+
 def test_embed_records_page_loads_rows():
     plan = embed_render_plan("records", "fragment")
     assert plan.records_rows is True