feat(douyu): 和平小店扭蛋碎片查询 + 深色模式修复 + 任务状态 WS 即时推送

- 碎片: 新增 query_xpd_fragments 任务, 复用 e语言 gamecoin 接口取扭蛋币 jb2,
  账号已存角色回退(规避 Livelink 风控), accounts.xpd_fragments 字段与迁移
- 列表: 和平小店移除鱼翅/限制兑换/换绑时间列, 新增扭蛋碎片列;
  操作区硬编码白底改用 theme token, 深色模式适配(三个手册共用)
- 轮询: 任务状态经 WS(level=task)即时推送(二维码/绑定进度即时展示),
  pending/running/终态全覆盖, REST/WS 载荷统一 douyu_task_payload,
  raw 快照递归剥离, HTTP 轮询降频 5s/30s 兜底

web/backend/services/douyu_service.py

@@ -13,8 +13,7 @@ from core.douyu.cookie_utils import cookie_value
 from ..models import Account, DouyuConfig, DouyuTask, LoginTask
 
 
-SUPPORTED_DOUYU_TASK_TYPES = {
-    "get_bind_qr": "获取绑定二维码",
+SUPPORTED_DOUYU_TASK_TYPES = {    "get_bind_qr": "获取绑定二维码",
     "confirm_bind": "确认绑定",
     "create_elite_qr": "开通精英宝典30",
     "prepare_esports_bind": "绑定电竞手册角色",
@@ -44,11 +43,11 @@ SUPPORTED_DOUYU_TASK_TYPES = {
     "query_xpd_role": "查询小店绑定角色",
     "refresh_xpd_goods": "刷新小店商品列表",
     "query_xpd_balance": "查询小店点券余额",
+    "query_xpd_fragments": "查询小店扭蛋碎片",
 }
 
 
-DOUYU_CONFIG_DEFAULTS = {
-    "manual_id": "G4KA4Qnz4LDp7",
+DOUYU_CONFIG_DEFAULTS = {    "manual_id": "G4KA4Qnz4LDp7",
     "rid": "9263298",
     "bind_act_alias": "20260120QYOOB",
     "confirm_act_alias": "20260120QYOOB",
@@ -223,3 +222,121 @@ def cleanup_orphan_douyu_tasks(
         task.finished_at = now
     db.commit()
     return len(tasks)
+
+
+def slim_douyu_goods(goods: object) -> object:
+    """保留兑换图片和列表展示需要的商品小字段。"""
+    if not isinstance(goods, dict):
+        return None
+    return {
+        key: value
+        for key, value in goods.items()
+        if key in {"commodityId", "commodity_id", "commodityName", "name", "webPic", "pic", "score", "status"}
+    }
+
+
+def slim_douyu_limited_goods(goods: object) -> list[dict[str, object]]:
+    """限兑列表只返回前几个商品名，避免任务列表携带完整原始数组。"""
+    if not isinstance(goods, list):
+        return []
+    result: list[dict[str, object]] = []
+    for item in goods[:5]:
+        if not isinstance(item, dict):
+            continue
+        result.append({
+            key: value
+            for key, value in item.items()
+            if key in {"commodityId", "commodity_id", "commodityName", "name"}
+        })
+    return result
+
+
+def strip_douyu_raw_snapshots(value: object) -> object:
+    """递归移除任务结果中的原始接口快照。"""
+    if isinstance(value, dict):
+        return {
+            key: strip_douyu_raw_snapshots(item)
+            for key, item in value.items()
+            if key != "raw"
+        }
+    if isinstance(value, list):
+        return [strip_douyu_raw_snapshots(item) for item in value]
+    return value
+
+
+def sanitize_douyu_task_result(result: dict | None, task_type: str, *, include_detail: bool = False) -> dict | None:
+    """列表/实时推送接口剥离原始快照与大数组；详情接口保留完整 result。"""
+    if not isinstance(result, dict):
+        return result
+    if include_detail:
+        return result
+
+    data = strip_douyu_raw_snapshots(result)
+    if not isinstance(data, dict):
+        return None
+    for key in (
+        "bind_info",
+        "before_bind_info",
+        "bind_candidates",
+        "cooldown_bind_info",
+        "after_bind_info",
+        "activity_bind_snapshot",
+        "activity_bind_info",
+        "points_query",
+        "exchange_balance_query",
+        "query_act_aliases",
+        "records",
+    ):
+        data.pop(key, None)
+
+    # 和平小店任务 result 内嵌 role（含 gameOpenId 等），列表接口剥离其原始快照
+    role = data.get("role")
+    if isinstance(role, dict):
+        data["role"] = strip_douyu_raw_snapshots(role)
+
+    goods = data.get("goods")
+    if isinstance(goods, list):
+        data.pop("goods", None)
+    elif isinstance(goods, dict):
+        data["goods"] = slim_douyu_goods(goods)
+
+    if "limited_goods" in data:
+        data["limited_goods"] = slim_douyu_limited_goods(data.get("limited_goods"))
+
+    if task_type not in {"get_bind_qr", "prepare_esports_bind", "get_esports_bind_qr", "get_xpd_bind_qr"}:
+        data.pop("url", None)
+    if task_type not in {"create_elite_qr", "create_esports_qr", "create_gold_qr"}:
+        data.pop("pay_url", None)
+    return data
+
+
+def douyu_task_payload(task: DouyuTask, *, include_detail: bool = False) -> dict:
+    """生成 REST 与 WebSocket 共用的斗鱼任务载荷。"""
+    account = task.account
+
+    def isoformat(value: datetime | None) -> str | None:
+        if value is None:
+            return None
+        if value.tzinfo is None:
+            value = value.replace(tzinfo=timezone.utc)
+        return value.isoformat()
+
+    return {
+        "id": task.id,
+        "batch_id": task.batch_id,
+        "account_id": task.account_id,
+        "account_username": (account.username if account else "") or "",
+        "account_uid": (account.uid if account else "") or "",
+        "account_nickname": (account.nickname if account else "") or "",
+        "task_type": task.task_type or "",
+        "status": task.status or "",
+        "message": task.message or "",
+        "result": sanitize_douyu_task_result(
+            task.result if isinstance(task.result, dict) else None,
+            task.task_type or "",
+            include_detail=include_detail,
+        ),
+        "created_by": task.created_by,
+        "created_at": isoformat(task.created_at),
+        "finished_at": isoformat(task.finished_at),
+    }