修复币本位报价误走USDC，中控补资金账户并隐藏零币余额

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

lib/instance/instance_embed_context_lib.py

@@ -123,7 +123,7 @@ def _fmt_coin_amount(v: float | None) -> str | None:
         n = float(v)
     except (TypeError, ValueError):
         return None
-    if abs(n) < 1e-12:
+    if n <= 0:
         return None
     txt = f"{n:.6f}".rstrip("0").rstrip(".")
     return txt or None

lib/instance/templates/embed_boot_scripts.html

@@ -1158,7 +1158,7 @@ function formatTradingAccountLabel(usdt, eth, btc, marginMode) {
     const pushCoin = (v, ccy) => {
         if (v === null || v === undefined || v === "") return;
         const n = Number(v);
-        if (Number.isNaN(n) || Math.abs(n) < 1e-12) return;
+        if (Number.isNaN(n) || !(n > 0)) return;
         const txt = String(n.toFixed(6)).replace(/\.?0+$/, "");
         parts.push(`${txt || "0"} ${ccy}`);
     };

lib/instance/templates/index.html

@@ -1639,7 +1639,7 @@ function formatTradingAccountLabel(usdt, eth, btc, marginMode) {
     const pushCoin = (v, ccy) => {
         if (v == null || v === "") return;
         const n = Number(v);
-        if (Number.isNaN(n) || Math.abs(n) < 1e-12) return;
+        if (Number.isNaN(n) || !(n > 0)) return;
         const txt = String(n.toFixed(6)).replace(/\.?0+$/, "");
         parts.push(`${txt || "0"} ${ccy}`);
     };