feat: strategy trade snapshots, DCA detail, and hub trend layout

Persist ended trend pullback and roll group snapshots to a unified records page; show replenishment tiers on instance and hub cards with horizontal single-position layout.

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

strategy_records_register.py

@@ -0,0 +1,55 @@
+"""策略交易记录页：已结束趋势 / 顺势加仓快照（四所统一）。"""
+from __future__ import annotations
+
+import json
+from typing import Any
+
+from flask import flash, redirect, url_for
+
+from strategy_snapshot_lib import list_strategy_snapshots
+
+
+def load_strategy_records_page(conn, *, limit: int = 200) -> dict[str, Any]:
+    snaps = list_strategy_snapshots(conn, limit=limit)
+    return {"strategy_snapshots": snaps, "strategy_records_limit": limit}
+
+
+def register_strategy_records(app, cfg: dict[str, Any]) -> None:
+    login_required = cfg["login_required"]
+    get_db = cfg["get_db"]
+
+    def _lr(f):
+        return login_required(f)
+
+    @_lr
+    @app.route("/strategy/records")
+    def strategy_records_page():
+        m = cfg.get("app_module")
+        fn = getattr(m, "render_main_page", None)
+        if not callable(fn):
+            flash("render_main_page 未配置")
+            return redirect(url_for("strategy_trading_page"))
+        return fn("strategy_records")
+
+    @_lr
+    @app.route("/strategy/records/<int:snap_id>")
+    def strategy_records_detail(snap_id: int):
+        conn = get_db()
+        row = conn.execute(
+            "SELECT * FROM strategy_trade_snapshots WHERE id=?",
+            (int(snap_id),),
+        ).fetchone()
+        conn.close()
+        if not row:
+            flash("未找到该策略快照")
+            return redirect(url_for("strategy_records_page"))
+        try:
+            snap = json.loads(row["snapshot_json"] or "{}")
+        except Exception:
+            snap = {}
+        dca = snap.get("dca_levels") or []
+        flash(
+            f"快照 #{snap_id} {row['strategy_type']} {row['symbol']} "
+            f"{row['result_label']} · 补仓档 {len(dca)} 项（详情见列表页）"
+        )
+        return redirect(url_for("strategy_records_page"))