v3.0.2

Signed-off-by: Dinger <quantdinger@gmail.com>

Author: quantdinger-lab

.gitignore

@@ -69,6 +69,12 @@ backend_api_python/dist/
 backend_api_python/data/quantdinger.db
 backend_api_python/data/memory/
 
+# ========================
+# i18n tooling
+# ========================
+scripts/.i18n-cache/
+QuantDinger-Vue-src/src/locales/lang/*.bak
+
 # ========================
 # Docker
 # ========================

README.md

@@ -21,7 +21,7 @@
 
   <p>
     <a href="LICENSE"><img src="https://img.shields.io/badge/License-Apache%202.0-blue.svg?style=flat-square&logo=apache" alt="License"></a>
-    <img src="https://img.shields.io/badge/Version-3.0.1-orange?style=flat-square" alt="Version">
+    <img src="https://img.shields.io/badge/Version-3.0.2-orange?style=flat-square" alt="Version">
     <img src="https://img.shields.io/badge/Python-3.10%2B%20%7C%20Docker%20image%203.12-3776AB?style=flat-square&logo=python&logoColor=white" alt="Python">
     <img src="https://img.shields.io/badge/Docker-Compose%20Ready-2496ED?style=flat-square&logo=docker&logoColor=white" alt="Docker">
     <img src="https://img.shields.io/badge/Frontend-Prebuilt-1f8b4c?style=flat-square" alt="Frontend">

backend_api_python/app.zip

@@ -272,10 +272,23 @@ def get_kline(
 
             # 过滤和限制
             klines = self.filter_and_limit(klines, limit, before_time)
-            
+
             # 记录结果
             self.log_result(symbol, klines, timeframe)
-            
+
+            # Concise trace so backtest logs can correlate requested window with actual window
+            if klines:
+                try:
+                    from datetime import datetime as _dt
+                    first_ts = _dt.utcfromtimestamp(klines[0]['time']).isoformat()
+                    last_ts = _dt.utcfromtimestamp(klines[-1]['time']).isoformat()
+                    logger.info(
+                        f"[CryptoKline] {symbol} {timeframe} returned {len(klines)} candles, "
+                        f"utc_range={first_ts}~{last_ts}, limit={limit}, before_time={before_time}"
+                    )
+                except Exception:
+                    pass
+
         except Exception as e:
             logger.error(f"Failed to fetch crypto K-lines {symbol}: {str(e)}")
             import traceback

backend_api_python/app/data_sources/crypto.py

@@ -237,8 +237,15 @@ def run_backtest():
                 'msg': f'Backtest range exceeds limit: timeframe {timeframe} supports up to {max_range_text} ({max_days} days), but you selected {days_diff} days',
                 'data': None
             }), 400
-        
-        
+
+        # Explicit audit log so we can always trace exactly which window the user asked for.
+        logger.info(
+            f"[BacktestRequest] user={user_id} indicator={indicator_id} {market}:{symbol} "
+            f"tf={timeframe} range=[{start_date_str} ~ {end_date_str}] ({days_diff}d) "
+            f"capital={initial_capital} leverage={leverage} direction={trade_direction} "
+            f"mtf={enable_mtf}"
+        )
+
         # 执行回测（支持多时间框架高精度回测）
         # 加密货币市场且启用MTF时，使用多时间框架回测
         if enable_mtf and market.lower() in ['crypto', 'cryptocurrency']:

backend_api_python/app/routes/backtest.py

@@ -110,6 +110,43 @@ def purchase_indicator(indicator_id: int):
         return jsonify({'code': 0, 'msg': str(e), 'data': None}), 500
 
 
+@community_bp.route("/indicators/<int:indicator_id>/sync", methods=["POST"])
+@login_required
+def sync_purchased_indicator(indicator_id: int):
+    """
+    同步已购买指标的最新代码
+
+    适用场景：
+        发布者在上架后又更新了指标代码，已购用户需要
+        手动拉取最新版本到自己的本地副本。
+
+    前置条件：
+        - 调用者必须已购买该指标
+        - 原始指标仍处于已发布状态
+    """
+    try:
+        service = get_community_service()
+        success, message, data = service.sync_purchased_indicator(
+            buyer_id=g.user_id,
+            indicator_id=indicator_id
+        )
+
+        if success:
+            return jsonify({'code': 1, 'msg': message, 'data': data})
+        else:
+            # 不同失败场景给到可区分的 http 状态，便于前端处理
+            status = 400
+            if message in ('indicator_not_found', 'indicator_unpublished', 'local_copy_not_found'):
+                status = 404
+            elif message == 'not_purchased':
+                status = 403
+            return jsonify({'code': 0, 'msg': message, 'data': data}), status
+
+    except Exception as e:
+        logger.error(f"sync_purchased_indicator failed: {e}")
+        return jsonify({'code': 0, 'msg': str(e), 'data': None}), 500
+
+
 @community_bp.route("/my-purchases", methods=["GET"])
 @login_required
 def get_my_purchases():

backend_api_python/app/routes/community.py

@@ -373,6 +373,13 @@ def run_strategy_backtest():
                 'data': None
             }), 400
 
+        logger.info(
+            f"[StrategyBacktestRequest] user={user_id} strategy={strategy_id} "
+            f"{snapshot.get('market') or ''}:{snapshot.get('symbol') or ''} "
+            f"tf={timeframe} range=[{start_date_str} ~ {end_date_str}] ({days_diff}d) "
+            f"run_type={snapshot.get('run_type') or ''}"
+        )
+
         svc = get_backtest_service()
         result = svc.run_strategy_snapshot(snapshot, start_date=start_date, end_date=end_date)
         run_id = svc.persist_run(