fix(gate-bot): format mark price with exchange symbol precision

Use price_to_precision in price_snapshot so live mark price matches entry/SL display instead of fixed 8 decimals.

crypto_monitor_gate_bot/app.py

@@ -52,6 +52,7 @@ from key_monitor_full_margin_lib import (
 from auto_transfer_daily_lib import run_auto_transfer_once_per_day
 from form_submit_lib import check_duplicate_submit, submit_scope_add_key, submit_scope_add_order
 from order_monitor_display_lib import (
+    apply_order_live_price_display,
     apply_order_price_display_fields,
     enrich_order_display_fields,
     stop_is_profit_protecting,
@@ -5926,6 +5927,13 @@ def api_price_snapshot():
                 payload["float_pct"] = (
                     round((payload["float_pnl"] / float(denom)) * 100, 4) if denom and float(denom) > 0 else pnl_pct
                 )
+        apply_order_live_price_display(
+            payload,
+            r["symbol"],
+            price,
+            payload.get("exchange_mark_price"),
+            format_price_for_symbol,
+        )
         if exchange_private_api_configured():
             try:
                 exchange_tpsl = fetch_exchange_tpsl_slots(