feat: 新增 BotOps 子模块——aibox 的 Textual TUI 前端（流式 Markdown 渲染+自动重连+任务侧栏）

BotOps/widgets/chat_view.py

@@ -0,0 +1,69 @@
+"""聊天视图：用户/AI/系统消息 + AI 回复流式 Markdown 渲染。"""
+from textual.containers import VerticalScroll
+from textual.widgets import Markdown, Static
+
+
+def _delta(prev: str, new: str) -> str:
+    """计算累计文本的增量（服务端 chunk 为累计全文；前缀失配时取最长公共前缀后的部分）。"""
+    if new.startswith(prev):
+        return new[len(prev):]
+    i = 0
+    for a, b in zip(prev, new):
+        if a != b:
+            break
+        i += 1
+    return new[i:]
+
+
+class ChatView(VerticalScroll):
+    """可滚动聊天区。AI 回复用单个 Markdown 部件增量 append，实现流式渲染。"""
+
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+        self._ai_widget: Markdown | None = None
+        self._ai_prev = ""
+
+    @property
+    def ai_text(self) -> str:
+        return self._ai_prev
+
+    async def add_user(self, text: str):
+        await self.mount(Static(f"👤 你: {text}", classes="msg-user", markup=False))
+
+    async def add_system(self, text: str, css_class: str = "msg-system"):
+        await self.mount(Static(text, classes=css_class, markup=False))
+
+    async def start_ai(self):
+        """预建一条 AI 消息（发送用户消息后即可调用，给出即时反馈）。"""
+        if self._ai_widget is not None:
+            return
+        self._ai_prev = ""
+        self._ai_widget = Markdown("", classes="msg-ai")
+        await self.mount(self._ai_widget)
+        self.scroll_end(animate=False)
+
+    async def append_ai(self, full_text: str):
+        """以累计全文增量渲染（服务端 chunk 为累计文本）。"""
+        if self._ai_widget is None:
+            await self.start_ai()
+        d = _delta(self._ai_prev, full_text)
+        if d:
+            self._ai_widget.append(d)
+            self._ai_prev = full_text
+            self.scroll_end(animate=False)
+
+    async def finish_ai(self, full_text: str = ""):
+        """收尾：用最终全文对齐一次（防中途丢帧），随后关闭本条 AI 消息。"""
+        if self._ai_widget is None and full_text:
+            await self.start_ai()
+        if full_text and full_text != self._ai_prev:
+            await self.append_ai(full_text)
+        self._ai_widget = None
+        self._ai_prev = ""
+        self.scroll_end(animate=False)
+
+    async def reset(self):
+        """清空聊天区（/clear）。"""
+        self._ai_widget = None
+        self._ai_prev = ""
+        await self.remove_children()

BotOps/widgets/status_bar.py

@@ -0,0 +1,14 @@
+"""底部状态栏：连接状态 + 服务器地址 + 附加信息。"""
+from textual.widgets import Static
+
+
+class StatusBar(Static):
+    def set_state(self, connected: bool, uri: str = "", extra: str = ""):
+        dot = "●" if connected else "○"
+        color = "green" if connected else "red"
+        text = f"[{color}]{dot}[/] {'已连接' if connected else '未连接'}"
+        if uri:
+            text += f"  {uri}"
+        if extra:
+            text += f"  |  {extra}"
+        self.update(text)