Add hub iframe embed shell with tab fragment API.

Replace full-page soft nav with a persistent shell and /api/embed/page loads so tab switches in the hub iframe avoid document.write flicker.

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

crypto_monitor_binance/app.py

@@ -6828,7 +6828,7 @@ def fetch_binance_net_pnl_for_trade(
 
 
 # ====================== 主页面 ======================
-def render_main_page(page="trade"):
+def render_main_page(page="trade", embed_mode=None):
     now = app_now()
     trading_day = get_trading_day(now)
     list_window = _list_window_from_request()
@@ -6909,8 +6909,9 @@ def render_main_page(page="trade"):
     if not order_list and exchange_private_api_configured():
         orphan_live_positions = list_orphan_live_positions(conn)
     conn.close()
-    return render_template(
-        "index.html",
+    from instance_embed_lib import embed_context_extras
+
+    template_ctx = dict(
         page=page,
         key=key_list,
         key_history=key_history,
@@ -6979,7 +6980,13 @@ def render_main_page(page="trade"):
         key_rule_ctx=key_rule_ctx,
         kline_timeframe=KLINE_TIMEFRAME,
         **strategy_extra,
+        **embed_context_extras("binance"),
     )
+    if embed_mode == "fragment":
+        return render_template("embed_page_fragment.html", **template_ctx)
+    if embed_mode == "shell":
+        return render_template("embed_shell.html", initial_tab=page, **template_ctx)
+    return render_template("index.html", **template_ctx)
 
 
 @app.route("/")
@@ -9375,6 +9382,8 @@ try:
         market_fn=_hub_fetch_market,
         risk_status_fn=hub_account_risk_status,
         user_close_fn=hub_user_initiated_close,
+        render_main_page_fn=render_main_page,
+        login_required_fn=login_required,
     )
 except Exception as _hub_err:
     print(f"[hub_bridge] binance: {_hub_err}")