docs: 重构为双语文档结构，添加人设图机制

- 拆分为 docs/(CN) 和 docs_en/(EN) 两个文件夹
- 主 README 索引对应语言文档
- 新增 persona.md (人设图机制详细说明)
- 文件重命名为英文名

ui/widgets/config_section.py

@@ -1,19 +1,18 @@
 """配置区组件"""
 
 from textual.containers import Vertical
-from textual.widgets import Static, Input, Collapsible
+from textual.widgets import Static, Input, Button
 from textual.app import ComposeResult
 from textual.message import Message
 from ..models.config import AppConfig
 
 
 class ConfigSection(Vertical):
-    """可折叠配置区"""
 
     class ConfigChanged(Message):
-        """配置变更事件"""
-        def __init__(self, config: AppConfig) -> None:
+        def __init__(self, config: AppConfig, is_tool_limits: bool = False) -> None:
             self.config = config
+            self.is_tool_limits = is_tool_limits
             super().__init__()
 
     def __init__(self, config: AppConfig | None = None, **kwargs):
@@ -21,8 +20,6 @@ class ConfigSection(Vertical):
         self._config = config or AppConfig()
 
     def compose(self) -> ComposeResult:
-        """构建配置区"""
-        # 直接显示配置，不使用Collapsible
         title = Static("━━ 配置 ━━", classes="config-title")
         title.can_focus = False
         yield title
@@ -58,23 +55,58 @@ class ConfigSection(Vertical):
             id="base-url-input"
         )
         
+        sep = Static("", classes="config-sep")
+        sep.can_focus = False
+        yield sep
+        
+        limits_title = Static("━━ 工具限制 ━━", classes="config-title")
+        limits_title.can_focus = False
+        yield limits_title
+        
+        l1 = Static("人设图查询:", classes="config-label")
+        l1.can_focus = False
+        yield l1
+        yield Input(value=str(self._config.persona_query_max), placeholder="1", id="persona-query-max")
+        
+        l2 = Static("人设图修改:", classes="config-label")
+        l2.can_focus = False
+        yield l2
+        yield Input(value=str(self._config.persona_update_max), placeholder="1", id="persona-update-max")
+        
+        l3 = Static("工作记忆查询:", classes="config-label")
+        l3.can_focus = False
+        yield l3
+        yield Input(value=str(self._config.task_query_max), placeholder="4", id="task-query-max")
+        
+        l4 = Static("工作记忆修改:", classes="config-label")
+        l4.can_focus = False
+        yield l4
+        yield Input(value=str(self._config.task_update_max), placeholder="2", id="task-update-max")
+        
+        l5 = Static("一般记忆查询:", classes="config-label")
+        l5.can_focus = False
+        yield l5
+        yield Input(value=str(self._config.memory_query_max), placeholder="20", id="memory-query-max")
+        
+        l6 = Static("一般记忆修改:", classes="config-label")
+        l6.can_focus = False
+        yield l6
+        yield Input(value=str(self._config.memory_update_max), placeholder="10", id="memory-update-max")
+        
         hint = Static("按Enter保存配置", classes="config-hint")
         hint.can_focus = False
         yield hint
 
     def on_mount(self) -> None:
-        """组件挂载时设置Tab顺序并加载配置"""
         try:
             api_key = self.query_one("#api-key-input", Input)
             model = self.query_one("#model-input", Input)
             base_url = self.query_one("#base-url-input", Input)
             
-            # 设置Tab索引
             api_key.tab_index = 0
             model.tab_index = 1
             base_url.tab_index = 2
             
-            # 如果配置有值，更新输入框
             if self._config.api_key:
                 api_key.value = self._config.api_key
             if self._config.model:
@@ -84,37 +116,39 @@ class ConfigSection(Vertical):
         except Exception:
             pass
 
-    def on_input_changed(self, event: Input.Changed) -> None:
-        """处理输入变更事件"""
-        # 防抖：只在用户停止输入时更新
-        pass  # 不在输入时实时更新，避免卡顿
-
     def on_input_submitted(self, event: Input.Submitted) -> None:
-        """处理输入提交事件（按Enter或Tab）"""
-        # 只在提交时更新配置
         try:
             api_key_input = self.query_one("#api-key-input", Input)
             model_input = self.query_one("#model-input", Input)
             base_url_input = self.query_one("#base-url-input", Input)
+            
+            persona_query = self.query_one("#persona-query-max", Input)
+            persona_update = self.query_one("#persona-update-max", Input)
+            task_query = self.query_one("#task-query-max", Input)
+            task_update = self.query_one("#task-update-max", Input)
+            memory_query = self.query_one("#memory-query-max", Input)
+            memory_update = self.query_one("#memory-update-max", Input)
 
-            # 更新配置
             self._config = AppConfig(
                 api_key=api_key_input.value,
                 model=model_input.value,
-                base_url=base_url_input.value
+                base_url=base_url_input.value,
+                persona_query_max=int(persona_query.value or 1),
+                persona_update_max=int(persona_update.value or 1),
+                task_query_max=int(task_query.value or 4),
+                task_update_max=int(task_update.value or 2),
+                memory_query_max=int(memory_query.value or 20),
+                memory_update_max=int(memory_update.value or 10),
             )
 
-            # 发送配置变更事件
-            self.post_message(self.ConfigChanged(self._config))
-        except Exception as e:
+            self.post_message(self.ConfigChanged(self._config, is_tool_limits=True))
+        except Exception:
             pass
 
     def get_config(self) -> AppConfig:
-        """获取当前配置"""
         return self._config
 
     def set_config(self, config: AppConfig) -> None:
-        """设置配置"""
         self._config = config
         try:
             api_key_input = self.query_one("#api-key-input", Input)
@@ -124,5 +158,12 @@ class ConfigSection(Vertical):
             api_key_input.value = config.api_key
             model_input.value = config.model
             base_url_input.value = config.base_url
+            
+            self.query_one("#persona-query-max", Input).value = str(config.persona_query_max)
+            self.query_one("#persona-update-max", Input).value = str(config.persona_update_max)
+            self.query_one("#task-query-max", Input).value = str(config.task_query_max)
+            self.query_one("#task-update-max", Input).value = str(config.task_update_max)
+            self.query_one("#memory-query-max", Input).value = str(config.memory_query_max)
+            self.query_one("#memory-update-max", Input).value = str(config.memory_update_max)
         except Exception:
             pass