引入二级大纲功能，新增父子节点关系及子节点排序，同时调整API与UI以支持嵌套大纲管理

frontend/src/components/chat/ChatToolCalls.vue

@@ -18,23 +18,48 @@ const isSkipped = computed(() => props.group.status === 'skipped')
 
 // 工具图标（SVG path）
 const TOOL_ICONS: Record<string, string> = {
+  // 大纲
   list_outlines: 'M3 4h10M3 8h10M3 12h6',
   create_outline: 'M8 3v10M3 8h10',
   update_outline: 'M3 12l2-2 4 4-2 2H3v-4zM9 6l2-2 4 4-2 2-4-4z',
   delete_outline: 'M3 5h10M5 5V3h6v2M4 5v8h8V5',
+  reorder_outlines: 'M3 4h7M3 8h7M3 12h7M12 3l2 2-2 2M12 9l2 2-2 2',
+  // 世界观
   get_world_setting: 'M8 1a7 7 0 100 14A7 7 0 008 1zM1 8h14M8 1c2 2 3 4.5 3 7s-1 5-3 7M8 1c-2 2-3 4.5-3 7s1 5 3 7',
   save_world_setting: 'M8 1a7 7 0 100 14A7 7 0 008 1zM4 8l3 3 5-5',
+  // 角色
+  list_characters: 'M5.5 5a2.5 2.5 0 105 0 2.5 2.5 0 00-5 0zM3 13c0-2.5 2-4 5-4s5 1.5 5 4',
+  create_character: 'M5 5a2.5 2.5 0 105 0 2.5 2.5 0 00-5 0zM2 13c0-2.5 2-4 5-4M12 6v5M9.5 8.5h5',
+  update_character: 'M5 5a2.5 2.5 0 105 0 2.5 2.5 0 00-5 0zM3 13c0-2.5 2-4 5-4M10 10l2-2 2 2-2 2z',
+  delete_character: 'M5 5a2.5 2.5 0 105 0 2.5 2.5 0 00-5 0zM3 13c0-2.5 2-4 5-4M10 8l4 4M14 8l-4 4',
+  // 章节
+  list_chapters: 'M4 2h8v12H4zM6 5h4M6 8h4M6 11h2',
+  create_chapter: 'M3 2h7v12H3zM12 5v5M9.5 7.5h5',
+  update_chapter: 'M4 2h8v12H4zM7 7l2-2 2 2-2 2z',
+  delete_chapter: 'M4 2h8v12H4zM6 6l4 4M10 6l-4 4',
 }
 
 // 工具颜色主题
 const TOOL_COLORS: Record<string, string> = {
+  // 大纲
   list_outlines: 'var(--bamboo)',
   create_outline: 'var(--bamboo)',
   update_outline: '#d4a017',
   delete_outline: 'var(--danger)',
-  delete_world_setting: 'var(--danger)',
+  reorder_outlines: '#d4a017',
+  // 世界观
   get_world_setting: 'var(--ink-500)',
   save_world_setting: 'var(--bamboo)',
+  // 角色
+  list_characters: '#7c6bc4',
+  create_character: '#7c6bc4',
+  update_character: '#d4a017',
+  delete_character: 'var(--danger)',
+  // 章节
+  list_chapters: '#4a90d9',
+  create_chapter: '#4a90d9',
+  update_chapter: '#d4a017',
+  delete_chapter: 'var(--danger)',
 }
 
 function getIcon(name: string): string {
@@ -57,10 +82,28 @@ function formatArgs(call: ToolCallEntry): string {
       return `#${args.outline_id}` + (args.summary ? ` → ${args.summary}` : '')
     case 'delete_outline':
       return `#${args.outline_id}`
+    case 'reorder_outlines': {
+      const ids = args.ordered_ids as number[]
+      return ids ? `${ids.length} 个节点` + (args.parent_id ? ` (父节点 #${args.parent_id})` : '') : ''
+    }
     case 'save_world_setting': {
       const content = (args.content as string) ?? ''
       return content.length > 80 ? content.slice(0, 80) + '…' : content
     }
+    // 角色
+    case 'create_character':
+      return args.name as string ?? ''
+    case 'update_character':
+      return `#${args.character_id}` + (args.name ? ` → ${args.name}` : '')
+    case 'delete_character':
+      return `#${args.character_id}`
+    // 章节
+    case 'create_chapter':
+      return args.title as string ?? ''
+    case 'update_chapter':
+      return `#${args.chapter_id}` + (args.title ? ` → ${args.title}` : '')
+    case 'delete_chapter':
+      return `#${args.chapter_id}`
     default:
       return ''
   }
@@ -71,7 +114,11 @@ function formatResult(call: ToolCallEntry): string {
   if (!call.result) return ''
   try {
     const data = call.parsedResult ?? JSON.parse(call.result)
+    // 通用错误检查
+    if ((data as { error?: string }).error) return `失败: ${(data as { error: string }).error}`
+
     switch (call.name) {
+      // 大纲
       case 'list_outlines': {
         const items = (data as { outlines: { id: number; summary: string }[] }).outlines
         if (!items?.length) return '暂无大纲'
@@ -80,11 +127,12 @@ function formatResult(call: ToolCallEntry): string {
       case 'create_outline':
         return `已创建: ${(data as { summary: string }).summary}`
       case 'update_outline':
-        if ((data as { error?: string }).error) return `失败: ${(data as { error: string }).error}`
         return `已更新: ${(data as { summary: string }).summary}`
       case 'delete_outline':
-        if ((data as { error?: string }).error) return `失败: ${(data as { error: string }).error}`
         return '已删除'
+      case 'reorder_outlines':
+        return `已调整 ${(data as { count: number }).count} 个节点的排序`
+      // 世界观
       case 'get_world_setting': {
         const content = (data as { content: string }).content
         if (!content) return '暂无世界观设定'
@@ -92,6 +140,30 @@ function formatResult(call: ToolCallEntry): string {
       }
       case 'save_world_setting':
         return `已保存 (${(data as { content_length: number }).content_length} 字)`
+      // 角色
+      case 'list_characters': {
+        const chars = (data as { characters: { id: number; name: string }[] }).characters
+        if (!chars?.length) return '暂无角色'
+        return chars.map((c: { id: number; name: string }) => `• ${c.name}`).join('\n')
+      }
+      case 'create_character':
+        return `已创建: ${(data as { name: string }).name}`
+      case 'update_character':
+        return `已更新: ${(data as { name: string }).name}`
+      case 'delete_character':
+        return '已删除'
+      // 章节
+      case 'list_chapters': {
+        const chs = (data as { chapters: { id: number; title: string }[] }).chapters
+        if (!chs?.length) return '暂无章节'
+        return chs.map((c: { id: number; title: string }) => `• ${c.title}`).join('\n')
+      }
+      case 'create_chapter':
+        return `已创建: ${(data as { title: string }).title}`
+      case 'update_chapter':
+        return `已更新: ${(data as { title: string }).title}`
+      case 'delete_chapter':
+        return '已删除'
       default:
         return call.result.slice(0, 100)
     }