feat(douyu-pool): 支持和平精英号池兑换与商品自动刷新，优化号池操作面板

- 扩展号池支持 peace (和平精英/小跑道) 活动 scope，映射 xpd_balance 与 exchange_xpd_goods 任务
- 新增 POST /douyu/pool/refresh-goods 接口与前端一键刷新，支持复用库内有效 CK 自动更新商品快照
- 前端 DouyuPoolPage 升级视觉设计与栅格布局，商品选择器支持按活动类型分类联动
- 修复 DouyuTask.result 类型守卫、account_events actor_id 类型防御与 runner 过滤规则边界值处理
- 验证方式：全量 pytest (797 通过)、pyright (0 错误)、tsc -b 及 ruff format/check 全部通过

web/backend/services/account_pool.py

@@ -32,7 +32,7 @@ from sqlalchemy.exc import IntegrityError
 from sqlalchemy.orm import Session
 
 from ..models import Account, AccountEvent, AccountLease, DouyuTask, User
-from .account_binding import SCOPE_ELITE, SCOPE_ESPORTS
+from .account_binding import SCOPE_ELITE, SCOPE_ESPORTS, SCOPE_PEACE
 
 #: 租约默认有效期（分钟）。到点由 `account_lease_reaper` 兜底回收。
 DEFAULT_LEASE_TTL_MINUTES = 60
@@ -53,6 +53,7 @@ _POOL_OWNER_ROLES = ("super_admin", "operation")
 _SCOPE_COLUMNS: dict[str, tuple[str, str | None]] = {
     SCOPE_ELITE: ("points", "elite_opened"),
     SCOPE_ESPORTS: ("esports_points", "esports_opened"),
+    SCOPE_PEACE: ("xpd_balance", None),
 }
 
 SUPPORTED_POOL_SCOPES = tuple(_SCOPE_COLUMNS)

web/backend/services/douyu_runner_core.py

@@ -291,8 +291,11 @@ class DouyuBatchRunnerCore:
         current = getattr(account, column, None)
         if current is None:
             return ""
+        raw_val = rule.get("value")
+        if raw_val is None:
+            return ""
         try:
-            target = int(rule.get("value"))
+            target = int(raw_val)
         except (TypeError, ValueError):
             return ""
         if compare(int(current), target):