Define entry styles: trend/reversal x 3 patterns, plus messy other.

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

app/routes.py

@@ -699,7 +699,13 @@ def register_routes(app: Flask) -> None:
                 charts[tf] = database.get_bars(
                     conn, trade["symbol"], tf, float(center) - window, float(center) + window
                 )
-        return render_template("record_detail.html", trade=trade, charts=charts)
+        return render_template(
+            "record_detail.html",
+            trade=trade,
+            charts=charts,
+            entry_styles=database.ENTRY_STYLES,
+            entry_patterns=database.ENTRY_PATTERN_TYPES,
+        )
 
     @app.post("/records/<int:tid>/annotate")
     @login_required
@@ -707,11 +713,17 @@ def register_routes(app: Flask) -> None:
         u = current_user()
         entry_style = (request.form.get("entry_style") or "").strip()
         note = (request.form.get("review_note") or "").strip()
+        allowed = set(database.ENTRY_STYLES)
         with database.get_db() as conn:
             trade = database.get_trade(conn, tid)
             if not trade or not database.user_can_access_account(u, trade.get("account_id")):
                 flash("无权标注该记录", "error")
                 return redirect(url_for("records_page"))
+            # 允许清空；或保留已有旧标注值；新选必须在标准列表内
+            prev = (trade.get("entry_style") or "").strip()
+            if entry_style and entry_style not in allowed and entry_style != prev:
+                flash("入场形式不在可选列表中", "error")
+                return redirect(url_for("record_detail", tid=tid))
             conn.execute(
                 "UPDATE trades SET entry_style=?, review_note=? WHERE id=?",
                 (entry_style, note, tid),