Improve dashboard responsive layout, collapsible risk section, and breakeven badge.

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

install_trading.py

@@ -166,6 +166,33 @@ def install_trading(app, *, login_required, require_nav, get_db, get_setting, se
             "symbol_is_main": bool(meta.get("is_main")),
         }
 
+    def _breakeven_locked(
+        *,
+        entry: Optional[float],
+        stop_loss: Optional[float],
+        direction: str,
+        tick_size: Optional[float] = None,
+        trailing_r_locked: int = 0,
+    ) -> bool:
+        if int(trailing_r_locked or 0) >= 1:
+            return True
+        if entry is None or stop_loss is None:
+            return False
+        try:
+            entry_f = float(entry)
+            sl_f = float(stop_loss)
+        except (TypeError, ValueError):
+            return False
+        if entry_f <= 0:
+            return False
+        tick = float(tick_size or 0) or max(abs(entry_f) * 1e-6, 0.01)
+        buf = tick * max(2, get_trailing_be_tick_buffer(get_setting))
+        d = (direction or "long").strip().lower()
+        near = abs(sl_f - entry_f) <= buf + tick
+        if d == "long":
+            return near and sl_f >= entry_f - tick * 0.05
+        return near and sl_f <= entry_f + tick * 0.05
+
     def _schedule_recommend_refresh() -> None:
         from db_conn import DB_PATH
 
@@ -1208,6 +1235,13 @@ def install_trading(app, *, login_required, require_nav, get_db, get_setting, se
             "pending_orders": pending_for_row,
             "trailing_be": bool(mon.get("trailing_be")) if mon else False,
             "trailing_r_locked": int(mon.get("trailing_r_locked") or 0) if mon else 0,
+            "breakeven_locked": _breakeven_locked(
+                entry=entry,
+                stop_loss=sl,
+                direction=direction,
+                tick_size=tick.get("tick_size"),
+                trailing_r_locked=int(mon.get("trailing_r_locked") or 0) if mon else 0,
+            ),
         }
 
     def _compose_pending_row(