fix(config): 修复切换充值渠道报错及补齐 peace_enabled 字段声明

- 在 DouyuConfigOut 与 DouyuConfigUpdate 中补齐 peace_enabled 声明与序列化
- 在 update_config 中使用 getattr(req, field, None) 安全读取属性，避免 AttributeError 导致 500
- 在 _config_out 中加入 peace_enabled 输出映射
- 增加切换充值渠道与配置更新的单元测试

tests/test_douyu_gold_recharge_channel.py

@@ -140,6 +140,32 @@ class TestDouyuGoldRechargeChannel:
 
         assert channel == {"gold_recharge_channel": "supplier_api"}
 
+    def test_update_config_switching_recharge_channel_and_peace_enabled(self):
+        from web.backend.routers.douyu import update_config
+        from web.backend.schemas import DouyuConfigUpdate
+
+        admin_user = self.session.get(User, self.task.created_by)
+
+        # 1. 切换到 supplier_api
+        req = DouyuConfigUpdate(
+            gold_recharge_channel="supplier_api",
+            peace_enabled=True,
+        )
+        res = update_config(req, db=self.session, current=admin_user)
+        dumped = res.model_dump()
+        assert dumped["gold_recharge_channel"] == "supplier_api"
+        assert dumped["peace_enabled"] is True
+
+        # 2. 切换回 wechat_qr
+        req2 = DouyuConfigUpdate(
+            gold_recharge_channel="wechat_qr",
+            peace_enabled=False,
+        )
+        res2 = update_config(req2, db=self.session, current=admin_user)
+        dumped2 = res2.model_dump()
+        assert dumped2["gold_recharge_channel"] == "wechat_qr"
+        assert dumped2["peace_enabled"] is False
+
     def test_recharge_audit_detail_includes_safe_account_identity(self):
         record_audit(
             self.session,

web/backend/routers/douyu.py

@@ -368,6 +368,7 @@ def _task_out(task: DouyuTask, *, include_detail: bool = False) -> DouyuTaskOut:
 def _config_out(config: DouyuConfig) -> DouyuConfigOut:
     text = lambda field: str(douyu_config_value(field, getattr(config, field)))
     number = lambda field: int(douyu_config_value(field, getattr(config, field)))
+    boolean = lambda field: bool(douyu_config_value(field, getattr(config, field)))
     return DouyuConfigOut(
         manual_id=text("manual_id"),
         rid=text("rid"),
@@ -383,6 +384,7 @@ def _config_out(config: DouyuConfig) -> DouyuConfigOut:
         esports_chicken_skin_id=text("esports_chicken_skin_id"),
         esports_firework_gift_id=text("esports_firework_gift_id"),
         esports_firework_skin_id=text("esports_firework_skin_id"),
+        peace_enabled=boolean("peace_enabled"),
         xpd_act_alias=text("xpd_act_alias"),
         xpd_act_id=text("xpd_act_id"),
         xpd_rid=text("xpd_rid"),
@@ -578,7 +580,7 @@ def update_config(
     config = ensure_douyu_config(db)
     changed_fields = []
     for field in DOUYU_CONFIG_FIELDS:
-        value = getattr(req, field)
+        value = getattr(req, field, None)
         if value is None:
             continue
         setattr(config, field, value.strip() if isinstance(value, str) else value)

web/backend/schemas.py

@@ -783,6 +783,7 @@ class DouyuConfigOut(BaseModel):
     esports_chicken_skin_id: str = "0"
     esports_firework_gift_id: str = "24767"
     esports_firework_skin_id: str = "3850"
+    peace_enabled: bool = False
     xpd_act_alias: str = "20260623KDQFH"
     xpd_act_id: str = "46195"
     xpd_rid: str = "9263298"
@@ -811,6 +812,7 @@ class DouyuConfigOut(BaseModel):
             "esports_chicken_skin_id": self.esports_chicken_skin_id,
             "esports_firework_gift_id": self.esports_firework_gift_id,
             "esports_firework_skin_id": self.esports_firework_skin_id,
+            "peace_enabled": self.peace_enabled,
             "xpd_act_alias": self.xpd_act_alias,
             "xpd_act_id": self.xpd_act_id,
             "xpd_rid": self.xpd_rid,
@@ -839,6 +841,7 @@ class DouyuConfigUpdate(BaseModel):
     esports_chicken_skin_id: str | None = None
     esports_firework_gift_id: str | None = None
     esports_firework_skin_id: str | None = None
+    peace_enabled: bool | None = None
     xpd_act_alias: str | None = None
     xpd_act_id: str | None = None
     xpd_rid: str | None = None