feat(hub): trend plan breakeven and stop from monitor fullscreen

Proxy /api/hub/trend/stop and breakeven to instances; enable offset input and actions in hub UI. Add horizontal padding on strategy records page.

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

strategy_trend_register.py

@@ -53,6 +53,7 @@ def install_strategy_trend(app: Flask, repo_root: str, app_module: Any = None, *
     app.extensions["strategy_trend_cfg"] = cfg
     register_trend_routes(app, cfg)
     _patch_hub_monitor_enrich(app, cfg)
+    _patch_hub_trend_views(app)
 
     @app.context_processor
     def _trend_ctx():
@@ -391,6 +392,23 @@ def enrich_trend_plan_for_hub(cfg: dict, raw: dict) -> dict:
     return d
 
 
+def _patch_hub_trend_views(app: Flask) -> None:
+    """将趋势回调路由注册进 HUB_CTX.views，供中控 /api/hub/trend/* 调用。"""
+    ctx = dict(app.config.get("HUB_CTX") or {})
+    views = dict(ctx.get("views") or {})
+    for name in (
+        "preview_trend_pullback",
+        "execute_trend_pullback",
+        "stop_trend_pullback",
+        "trend_pullback_breakeven",
+    ):
+        vf = app.view_functions.get(name)
+        if vf is not None:
+            views[name] = vf
+    ctx["views"] = views
+    app.config["HUB_CTX"] = ctx
+
+
 def _patch_hub_monitor_enrich(app: Flask, cfg: dict) -> None:
     ctx = dict(app.config.get("HUB_CTX") or {})
     prev = ctx.get("enrich_monitor")
@@ -465,7 +483,12 @@ def enrich_trend_plan(cfg: dict, row) -> dict:
         d["floating_pnl"] = d["floating_mark"] = None
     from strategy_snapshot_lib import attach_trend_dca_levels
 
-    return attach_trend_dca_levels(d)
+    d = attach_trend_dca_levels(d)
+    try:
+        d["breakeven_default_offset_pct"] = float(cfg.get("breakeven_offset_pct", 0.3))
+    except (TypeError, ValueError):
+        d["breakeven_default_offset_pct"] = 0.3
+    return d
 
 
 def _weighted_avg(old_avg, old_amt, fill_px, add_amt):