feat(video-analysis): 抖音免浏览器解析链路 + 快手支持 + 小红书加固 + 发送防重复

- 抖音（2026-10-13）：删除 SSR + playwright 旧链路（douyin_ssr.py 移除，
  douyin_api.py 精简为下载工具），新增 douyin_web.py（x-tt-argus 网关头 +
  web detail 接口 + 最高码率梯/多 CDN 回退下载）与 douyin_sign.py
  （纯 Python a_bogus 签名，vendor 自 f2（Apache-2.0），依赖 gmssl SM3）；
  实测 10/10 成功率、单作品 <1s（旧浏览器链路 5-15s 且随机撞验证码）
- 快手（2026-10-08）：kuaishou_content.py 分享页 INIT_STATE 静态解析（无登录态），
  清晰度梯最佳档 + 图集 URL 组装，入口/策略/Web 面板同步接入
- 小红书：按链接来源定国际/国内站优先序、视频 backupUrls 逐候选回退、
  图片 urlDefault→infoList WB_DFT→url 三档回退
- 长视频防重复发送（2026-10-13）：媒体发送带 per-call _timeout（默认 300s），
  超时=结果未知不再降级重试；auto/active 两条 handler 互斥
- Web 解析封面抽帧 ffmpeg 加 CREATE_NO_WINDOW（pythonw 下不再弹 cmd 黑窗）
- 依赖：+gmssl；测试：新增 test_douyin_web / test_kuaishou_parse / test_video_cleanup，
  扩充 test_video_policy / test_video_sender_link / test_video_group_file / test_video_media_naming

Co-Authored-By: Claude Code <noreply@anthropic.com>

hexi/plugins/nonebot_plugin_video_analysis/handlers/entry.py

@@ -11,7 +11,11 @@ from nonebot.rule import to_me
 from nonebot_plugin_alconna import UniMessage
 from nonebot_plugin_alconna.uniseg import get_target
 
-from ..services.fetchers.bilibili_content import fetch_bilibili_content, resolve_short_link
+from ..services.fetchers.bilibili_content import (
+    fetch_bilibili_content,
+    resolve_short_link,
+)
+from ..services.fetchers.kuaishou_content import fetch_kuaishou_content
 from ..services.fetchers.rednote_content import fetch_rednote_content
 from .douyin import parse_douyin, process_douyin_res
 from .sender import PendingMedia, send_pending_media
@@ -32,6 +36,8 @@ VALID_HOSTS = [
     "iesdouyin.com",
     "m.douyin.com",
     "jingxuan.douyin.com",
+    "kuaishou.com",
+    "chenzhongtech.com",
     "x.com",
     "twitter.com",
     "xiaohongshu.com",
@@ -39,7 +45,16 @@ VALID_HOSTS = [
     "xhslink.cn",
 ]
 
-auto_video_handler = on_message(priority=10, block=False)
+async def _not_to_me(event: Event) -> bool:
+    """不是 @bot / 昵称开头的消息（`to_me()` 的反面；Rule 没有 `__invert__`）。"""
+    return not event.is_tome()
+
+
+# auto 与 active 是互斥的两条路：@bot（或昵称开头）的消息归 active 管，其余归
+# auto。两个 matcher 都是 block=False（不拦其它插件），若 auto 不排除 to_me，
+# 一条 @bot 的链接消息会同时命中两个 handler → 解析发送两遍（长视频要等几分钟，
+# 重复非常显眼；2026-10-13 排查发送重复时发现）。
+auto_video_handler = on_message(priority=10, block=False, rule=_not_to_me)
 active_video_handler = on_message(priority=10, block=False, rule=to_me())
 
 
@@ -203,14 +218,41 @@ async def dispatch_url(
                 logger.warning(f"媒体解析：未能获取到作品：{url}")
                 return None, None
             return await process_douyin_res(
-                title, parsed_path, is_private, image_post,
-                policy=policy, platform=platform,
+                title,
+                parsed_path,
+                is_private,
+                image_post,
+                policy=policy,
+                platform=platform,
             )
         except Exception:
             await UniMessage.text(f"无法解析到媒体：{url}").send()
             logger.exception(f"媒体解析：无法解析到媒体：{url}")
             return None, None
 
+    if "kuaishou.com" in url or "chenzhongtech.com" in url:
+        await UniMessage.text("检测到链接，正在处理，请稍候...").send()
+        try:
+            title, parsed_path = await fetch_kuaishou_content(url)
+            if not title and parsed_path is None:
+                await UniMessage.text(f"无法解析到媒体：{url}").send()
+                return None, None
+            if parsed_path == []:
+                await UniMessage.text(title).send()
+                return None, None
+            return await process_douyin_res(
+                title,
+                parsed_path,
+                is_private,
+                isinstance(parsed_path, list),
+                policy=policy,
+                platform=platform,
+            )
+        except Exception:
+            await UniMessage.text(f"无法解析到媒体：{url}").send()
+            logger.exception(f"快手解析：无法解析：{url}")
+            return None, None
+
     if any(
         kw in url
         for kw in (
@@ -230,8 +272,12 @@ async def dispatch_url(
                 await UniMessage.text(title).send()
                 return None, None
             return await process_douyin_res(
-                title, parsed_path, is_private,
-                isinstance(parsed_path, list), policy=policy, platform=platform,
+                title,
+                parsed_path,
+                is_private,
+                isinstance(parsed_path, list),
+                policy=policy,
+                platform=platform,
             )
         except Exception:
             await UniMessage.text(f"无法解析到内容：{url}").send()
@@ -249,8 +295,12 @@ async def dispatch_url(
                 await UniMessage.text(title).send()
                 return None, None
             return await process_douyin_res(
-                title, parsed_path, is_private,
-                isinstance(parsed_path, list), policy=policy, platform=platform,
+                title,
+                parsed_path,
+                is_private,
+                isinstance(parsed_path, list),
+                policy=policy,
+                platform=platform,
             )
         except Exception:
             await UniMessage.text(f"无法解析到内容：{url}").send()