Align dashboard PnL columns with monitor; add back-to-dashboard button.

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

manual_trading_hub/static/app.js

@@ -2528,6 +2528,17 @@
               renderMonitorGrid(lastMonitorRows);
             };
           });
+          fsInner.querySelectorAll(".btn-expand-dashboard").forEach((btn) => {
+            btn.onclick = (ev) => {
+              ev.stopPropagation();
+              closeExchangeFullscreen();
+              if (window.hubNavigateTo) window.hubNavigateTo("/dashboard");
+              else {
+                history.pushState({}, "", "/dashboard");
+                setActiveNav();
+              }
+            };
+          });
         } catch (err) {
           console.error("renderFullscreenExchange", err);
           closeExchangeFullscreen();
@@ -4000,6 +4011,7 @@
       </div>
       <div class="fs-head-actions">
         <button type="button" class="ghost btn-expand-back">返回监控</button>
+        <button type="button" class="ghost btn-expand-dashboard">返回数据看板</button>
         ${flaskOpen ? `<a class="btn-link btn-open-instance btn-open-trade" href="#" data-ex-id="${esc(row.id)}" data-next="/trade" data-new-tab="1">打开实例</a>` : ""}
         ${flaskOpen ? `<a class="btn-link btn-open-instance" href="#" data-ex-id="${esc(row.id)}" data-next="/trade">下单</a>` : ""}
         ${flaskOpen ? `<a class="btn-link btn-open-instance" href="#" data-ex-id="${esc(row.id)}" data-next="/key_monitor">监控位</a>` : ""}