虎牙自动注册持久化成功流水与批次，支持失败续跑与随时导出

将注册批次/条目/成功记录落库，成功一个写入一条流水；服务中断可恢复并续跑失败项，换电脑也能导出 txt。同时修复 pending 被误判为运行中导致页面卡住的问题。

web/backend/schemas.py

@@ -248,6 +248,16 @@ class HuyaAutoRegisterRequest(BaseModel):
     use_proxy: bool = False
 
 
+class HuyaAutoRegisterRetryRequest(BaseModel):
+    """从失败/停止/未完成条目续跑。可覆盖运行参数。"""
+    concurrency: Optional[int] = Field(None, ge=1, le=5)
+    wait_seconds: Optional[float] = Field(None, ge=15, le=600)
+    poll_interval: Optional[float] = Field(None, ge=1, le=30)
+    password_prefix: Optional[str] = Field(None, max_length=8)
+    fixed_password: Optional[str] = Field(None, max_length=64)
+    use_proxy: Optional[bool] = None
+
+
 class HuyaAutoRegisterItemOut(BaseModel):
     line: int
     phone: str
@@ -289,7 +299,24 @@ class HuyaAutoRegisterBatchOut(BaseModel):
     created_at: Optional[datetime] = None
     started_at: Optional[datetime] = None
     finished_at: Optional[datetime] = None
-    items: list[HuyaAutoRegisterItemOut]
+    items: list[HuyaAutoRegisterItemOut] = []
+
+
+class HuyaRegisterSuccessLogOut(BaseModel):
+    id: int
+    batch_id: str = ""
+    item_id: Optional[int] = None
+    account_id: Optional[int] = None
+    phone: str = ""
+    username: str = ""
+    uid: str = ""
+    password: str = ""
+    sms_url: str = ""
+    tag: str = ""
+    provider: str = ""
+    created_by: Optional[int] = None
+    created_at: Optional[datetime] = None
+    export_line: str = ""
 
 
 class HuyaPasswordAccountImport(BaseModel):