Multi-Agent Studio v1.7.6

中文

• 浏览器面板（下拉候选）判定重做：不再用「整页浮层数量 / 指纹」反推单个面板开没开，而是给面板认领身份（CDP 句柄集合），之后只问「这几个候选节点还在不在」。这是 BID089–BID109 二十余轮修复的收口。
• 修复一批静默失败 / 反向操作：
  • 点击已经展开的下拉会把面板关掉，返回却只说「成功」；
  • 在筛选框输入时，输入前的隐式点击把面板关掉，返回不提候选已消失；
  • 批量填写（tool_06）的中间填写与收尾点击漏掉面板校验；
  • 模态框 / 弹窗里的下拉永远打不开；
  • 筛选把候选从多行筛到 1 行时，被误判成「面板被关掉」并多点一次；
  • 无关提示条 / toast 消失被误判成面板关闭，反而把仍开着的面板点关；
  • 补点恢复后承诺「候选项见下方返回内容」，而下方其实是「（页面无变化）」。
• 新增结构化字段 panel：{"state": "open"|"closed"|"unknown", "clicks": n, "reason": …}。unknown 是合法结果（探测盲区 / 页面不可见），不再用散文让模型自己推断；普通按钮点击与普通文本框输入不产生该字段。批量工具（tool_06）按字段分别给出（tail + fields）。
• 新增真实页面冒烟测试：用历史会话保存的真实页面回放，覆盖「不抛异常 / 不超时 / 点击次数 ≤ 2 / 无自相矛盾的提示 / 无假承诺」。
• 升级方式不变：按 README「版本迁移」覆盖文件即可；本次改动不涉及配置或数据库迁移。

English

• Reworked dropdown-panel detection: instead of inferring "is this panel open" from whole-page overlay counts / fingerprints, the browser tool now assigns each panel an identity (a small set of CDP handles) and simply asks whether those candidate nodes are still there. This closes out 20+ rounds of panel fixes (BID089–BID109).
• Fixed a batch of silent failures / reverse actions:
  • clicking an already-open dropdown closed the panel but still reported success;
  • typing into a filter box closed the panel via the implicit focus click, with no disclosure;
  • batch fill (tool_06) skipped panel verification for mid-fills and the trailing click;
  • dropdowns inside modal dialogs could never be opened;
  • filtering candidates down to a single row was misread as "the panel was closed", causing an extra click;
  • unrelated toasts / validation hints disappearing were misread as "panel closed", closing a panel that was still open;
  • after a corrective click the result still promised "candidates are in the content below" while the body was "（页面无变化）".
• New structured panel field: {"state": "open"|"closed"|"unknown", "clicks": n, "reason": …}. unknown is a legitimate result (probe blind spot / page not visible); plain button clicks and plain text inputs do not emit this field. The batch tool (tool_06) reports it per field (tail + fields).
• New real-page smoke test: replays actual pages captured in past sessions, asserting "no exception / no timeout / ≤ 2 physical clicks / no self-contradictory notices / no false promise".
• Upgrading is unchanged (see README "Version migration"); this release has no config or database migration.