chore: lint 修复（TC001/TC003 类型导入优化）

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

adapters/redis_cache.py

@@ -47,9 +47,7 @@ class RedisResponseCache:
         digest = hashlib.sha256(payload.encode("utf-8")).hexdigest()
         return f"llm_cache:{digest}"
 
-    async def get(
-        self, model: str, messages: list[dict[str, str]]
-    ) -> LLMResponse | None:
+    async def get(self, model: str, messages: list[dict[str, str]]) -> LLMResponse | None:
         """从缓存读取 LLM 响应。
 
         Args:
@@ -87,9 +85,7 @@ class RedisResponseCache:
         """
         try:
             key = self._build_key(model, messages)
-            value = json.dumps(
-                dataclasses.asdict(response), ensure_ascii=False
-            )
+            value = json.dumps(dataclasses.asdict(response), ensure_ascii=False)
             await self._redis.set(key, value, ex=self._ttl_s)
         except Exception:
             logger.warning("Redis 缓存写入失败，跳过缓存")