chore(translate): 降频 2秒/次 + 改 spark 为 wss WebSocket 鉴权(智谱/zhipu=第一)

backend/app/config.py

@@ -70,19 +70,28 @@ class Settings(BaseSettings):
     tencent_tmt_quota_buffer: float = 0.05
     tencent_tmt_max_chars_per_req: int = 4500
 
-    # ===== 星火 Spark(优先翻译;Lite/免费)=====
-    # 留空 = 不启用星火(直接走腾讯 TMT)
-    spark_api_password: str = ""
-    spark_base_url: str = "https://spark-api-open.xf-yun.com/v1"
-    spark_model: str = "lite"
-    spark_interval_sec: float = 1.0
-
-    # ===== 智谱 GLM(第二序位翻译;GLM-4-Flash 免费)=====
-    # 留空 = 不启用智谱(spark 不可用时直接降级到 tencent)
+    # ===== 智谱 GLM(OpenAI 兼容,翻译主通道)=====
+    # 用法:智谱开放平台 GLM-4 系列,通过 OpenAI 协议调用
+    # 留空 api_key = 不启用该 provider
     zhipu_api_key: str = ""
     zhipu_base_url: str = "https://open.bigmodel.cn/api/paas/v4"
-    zhipu_model: str = "glm-4-flash"
-    zhipu_interval_sec: float = 1.0
+    zhipu_chat_model: str = "glm-4-flash"
+    zhipu_model: str = "glm-4-flash"  # 兼容旧字段名
+    # 2 秒/次(用户要求 6/11,降低频率避免触发限流)
+    zhipu_interval_sec: float = 2.0
+
+    # ===== 讯飞星火(WebSocket,翻译二级通道)=====
+    # 用法:讯飞星火 v1.1 Spark Lite,WebSocket 鉴权需要 APPID + APIKey + APISecret
+    # 留空任意一个 = 不启用该 provider
+    # (历史实现用的是 OpenAI 兼容 + APIPassword,已切换为 WebSocket 鉴权,字段名换)
+    spark_appid: str = ""
+    spark_api_key: str = ""  # WebSocket 鉴权用的 APIKey
+    spark_api_secret: str = ""  # WebSocket 鉴权用的 APISecret
+    spark_domain: str = "lite"  # v1.1 Spark Lite
+    # 兼容旧字段名(留空,只在没填 WebSocket 字段时起提示作用)
+    spark_api_password: str = ""
+    # 2 秒/次(用户要求 6/11,降低频率避免触发限流)
+    spark_interval_sec: float = 2.0
 
     @field_validator("tencent_tmt_quota_buffer")
     @classmethod
@@ -102,8 +111,8 @@ class Settings(BaseSettings):
     tencent_maas_api_key: str = ""
     tencent_maas_base_url: str = "https://maas-api.hivoice.cn/v1"
     tencent_maas_model: str = "u2"
-    # 每篇调用间隔(秒),与 LLM 客户端解耦
-    tencent_maas_interval_sec: float = 1.0
+    # 2 秒/次(与智谱/星火统一节流)
+    tencent_maas_interval_sec: float = 2.0
 
     # ===== 抓取 =====
     fetch_global_qps: int = 4