docs(ai-assistant): 更新 AI 助手知识库及主题色彩规范文档

- 完善主题配置章节，增加基于 tailwind.ui.config.ts 的亮暗主题色彩体系完整参考
- 详细列出核心容器颜色、文字图标颜色及填充边框色阶体系，规范对应 Tailwind 类名
- 明确 1~7 级色阶体系及其对应扩展类名说明，增强视觉一致性指导
- 新增 AI 智能助手知识库同步规范，要求功能改动时必须同步更新问答数据库
- 规范 AI 助手问答准确性要求，确保描述与界面和代码交互保持 100% 一致
- 细化关键字、拼音、标签联动设置，优化上下文感知推荐准确度
- 约束 AI 助手的快捷动作绑定，实现问答与操作闭环体验
- 优化 AiAssistant 组件样式，全面采用 themeVars 颜色变量及 color-mix 函数实现柔和色彩过渡
- 统一对话内容、按钮及高亮提示色彩的设计，提升界面视觉统一性和交互反馈
- 调整 FAQ 分类顺序及命名，新增表格编辑与节点树分类，改进分类逻辑
- 扩展 FAQ 数据库中元素插入说明，增强插图与模板插入步骤的细节描述
- 改进步骤列表渲染，支持子项目缩进及更清晰的编号与项目符号展示
- 多处调整文字颜色与交互样式，提升信息层次感与用户操作体验

src/layouts/components/AiAssistant/functionals/index.ts

-import type { FaqItem, FaqCategory, ChatMessage, FaqAction, MatchResult } from '../constants'
+import type { FaqItem, FaqCategory, ChatMessage, FaqAction, MatchResult, StepItemParsed } from '../constants'
 import { FAQ_CATEGORIES, FAQ_DATABASE, HOT_QUESTIONS } from '../constants'
 import { useEditorStore } from '@/store/editor'
 import { useAiAssistantStore } from '@/store/aiAssistant'
-import { storeToRefs } from 'pinia'
 
 /**
  * 文本清洗规范化
@@ -185,6 +184,32 @@ export const getSuggestions = (input: string, limit = 5): FaqItem[] => {
 }
 
 /**
+ * 结构化解析步骤文本，识别主步骤与子项目
+ */
+export const parseStepItems = (steps: string[]): StepItemParsed[] => {
+    const result: StepItemParsed[] = []
+    let mainIndex = 0
+
+    for (const rawStep of steps) {
+        const isSub = /^[\s\t]*[·•\-\*]/.test(rawStep)
+        if (isSub) {
+            result.push({
+                isSubItem: true,
+                text: rawStep.replace(/^[\s\t]*[·•\-\*]\s*/, '')
+            })
+        } else {
+            mainIndex++
+            result.push({
+                isSubItem: false,
+                stepNumber: mainIndex,
+                text: rawStep
+            })
+        }
+    }
+    return result
+}
+
+/**
  * AI 助手核心业务与交互逻辑 Hook（极致丝滑流式动效架构）
  */
 export const useAiAssistant = () => {
@@ -646,10 +671,13 @@ export const useAiAssistant = () => {
         if (msg.faq) {
             textToCopy = `【${msg.faq.title}】\n${msg.faq.answer}`
             if (msg.faq.steps && msg.faq.steps.length > 0) {
-                textToCopy += `\n\n操作指引：\n` + msg.faq.steps.map((s, idx) => `${idx + 1}. ${s}`).join('\n')
+                const parsed = parseStepItems(msg.faq.steps)
+                textToCopy +=
+                    `\n\n操作指引：\n` +
+                    parsed.map((s) => (s.isSubItem ? `  • ${s.text}` : `${s.stepNumber}. ${s.text}`)).join('\n')
             }
             if (msg.faq.highlights && msg.faq.highlights.length > 0) {
-                textToCopy += `\n\n提示：\n` + msg.faq.highlights.join('\n')
+                textToCopy += `\n\n提示：\n` + msg.faq.highlights.map((h) => `• ${h}`).join('\n')
             }
         }
 
@@ -701,6 +729,7 @@ export const useAiAssistant = () => {
         dialogCount,
         selectedNodeTag: computed(() => editorStore.selectedNode?.tagName),
         FAQ_CATEGORIES,
+        parseStepItems,
         handleBadgeMouseDown,
         handleBadgeTouchStart,
         handleWindowMouseDown,

src/views/editor/components/EditorToolbar/index.vue

@@ -597,6 +597,15 @@ onMounted(() => {
     eventBus.on('trigger_open_settings', () => {
         appStore.settingsOpen = true
     })
+    eventBus.on('trigger_undo', () => {
+        if (canUndo.value) editorStore.undo()
+    })
+    eventBus.on('trigger_redo', () => {
+        if (canRedo.value) editorStore.redo()
+    })
+    eventBus.on('trigger_toggle_theme', () => {
+        appStore.isDark = !appStore.isDark
+    })
 })
 </script>