行情区：现价标签固定于价格轴，K线右侧保留10根留白

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

manual_trading_hub/static/app.css

@@ -2062,16 +2062,17 @@ body.login-page {
 
 .market-price-tag {
   position: absolute;
+  right: 0;
   z-index: 5;
   pointer-events: none;
   padding: 4px 8px;
-  border-radius: 4px;
+  border-radius: 4px 0 0 4px;
   font-family: var(--font);
   font-size: 0.72rem;
   font-weight: 600;
   line-height: 1.25;
   text-align: center;
-  transform: translate(-50%, -50%);
+  transform: translateY(-50%);
   min-width: 72px;
   box-shadow: 0 1px 6px rgba(0, 0, 0, 0.35);
 }