初始化工程

backend/app/strategy/config.py

@@ -0,0 +1,71 @@
+"""策略配置持久化 — 读写用户覆盖值。
+
+职责: 将每个策略的用户定制设置（基础参数、策略参数、评分、买卖信号）持久化到 JSON。
+不知道: 引擎、AI、前端、回测。
+存储: data/user_data/strategy_overrides/{strategy_id}.json
+"""
+from __future__ import annotations
+
+import json
+import logging
+from pathlib import Path
+
+logger = logging.getLogger(__name__)
+
+
+def _overrides_dir(data_dir: Path) -> Path:
+    d = data_dir / "user_data" / "strategy_overrides"
+    d.mkdir(parents=True, exist_ok=True)
+    return d
+
+
+def _path(data_dir: Path, strategy_id: str) -> Path:
+    return _overrides_dir(data_dir) / f"{strategy_id}.json"
+
+
+def load_override(data_dir: Path, strategy_id: str) -> dict:
+    """读取策略的用户覆盖配置，不存在返回空 dict"""
+    p = _path(data_dir, strategy_id)
+    if not p.exists():
+        return {}
+    try:
+        data = json.loads(p.read_text(encoding="utf-8"))
+        # 清理 basic_filter 中值为 None/空的键（避免固化无意义的空值）
+        bf = data.get("basic_filter")
+        if isinstance(bf, dict):
+            cleaned = {k: v for k, v in bf.items() if v is not None}
+            if cleaned:
+                data["basic_filter"] = cleaned
+            else:
+                del data["basic_filter"]
+        return data
+    except Exception as e:
+        logger.warning("load override %s failed: %s", strategy_id, e)
+        return {}
+
+
+def save_override(data_dir: Path, strategy_id: str, overrides: dict) -> None:
+    """保存策略的用户覆盖配置（全量覆盖写）"""
+    p = _path(data_dir, strategy_id)
+    p.parent.mkdir(parents=True, exist_ok=True)
+    p.write_text(json.dumps(overrides, ensure_ascii=False, indent=2), encoding="utf-8")
+
+
+def delete_override(data_dir: Path, strategy_id: str) -> None:
+    """删除策略的用户覆盖配置（重置为默认值）"""
+    p = _path(data_dir, strategy_id)
+    if p.exists():
+        p.unlink()
+
+
+def list_overrides(data_dir: Path) -> dict[str, dict]:
+    """返回所有策略的覆盖配置 {strategy_id: overrides}"""
+    d = _overrides_dir(data_dir)
+    result: dict[str, dict] = {}
+    for f in d.glob("*.json"):
+        try:
+            sid = f.stem
+            result[sid] = json.loads(f.read_text(encoding="utf-8"))
+        except Exception:
+            continue
+    return result