期权页增加重试卖回ETH按钮，平仓后可手动全额卖回交易户标的币

币本位模式下持仓区显示重试按钮与可用余额提示，调用已有 spot-bridge 接口按交易账户全部可用量市价卖回 USDT。

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

lib/common/static/instance_theme.css

@@ -5279,6 +5279,24 @@ html[data-theme="light"] .opt-source-badge--oo {
 .options-pos-head h2 {
   margin: 0;
 }
+.options-pos-head-actions {
+  display: flex;
+  align-items: center;
+  justify-content: flex-end;
+  flex-wrap: wrap;
+  gap: 8px;
+  margin-left: auto;
+}
+.opt-bridge-sell-hint {
+  font-size: 0.78rem;
+  line-height: 1.35;
+  max-width: 280px;
+  text-align: right;
+}
+.opt-retry-sell-coin-btn--pending {
+  border-color: #ffb347;
+  color: #ffb347;
+}
 .opt-pos-card {
   margin-bottom: 10px;
 }