feat: 新增技能编排引擎和工作流构建器组件

refactor: 统一Hands系统常量到单个源文件
refactor: 更新Hands中文名称和描述

fix: 修复技能市场在连接状态变化时重新加载
fix: 修复身份变更提案的错误处理逻辑

docs: 更新多个功能文档的验证状态和实现位置
docs: 更新Hands系统文档

test: 添加测试文件验证工作区路径

desktop/src/constants/hands.ts

@@ -0,0 +1,79 @@
+/**
+ * Hand ID Constants - Single Source of Truth
+ *
+ * All Hand-related constants should reference this file.
+ * Do NOT hardcode Hand IDs elsewhere.
+ */
+
+// === Hand IDs (must match backend zclaw-hands) ===
+
+export const HAND_IDS = {
+  BROWSER: 'browser',
+  RESEARCHER: 'researcher',
+  COLLECTOR: 'collector',
+  PREDICTOR: 'predictor',
+  LEAD: 'lead',
+  TRADER: 'trader',
+  CLIP: 'clip',
+  TWITTER: 'twitter',
+  // Additional hands from backend
+  SLIDESHOW: 'slideshow',
+  SPEECH: 'speech',
+  QUIZ: 'quiz',
+  WHITEBOARD: 'whiteboard',
+} as const;
+
+export type HandIdType = typeof HAND_IDS[keyof typeof HAND_IDS];
+
+// === Hand Categories ===
+
+export const HAND_CATEGORIES = {
+  RESEARCH: 'research',
+  DATA: 'data',
+  AUTOMATION: 'automation',
+  COMMUNICATION: 'communication',
+  CONTENT: 'content',
+  PRODUCTIVITY: 'productivity',
+} as const;
+
+export type HandCategoryType = typeof HAND_CATEGORIES[keyof typeof HAND_CATEGORIES];
+
+// === Hand ID to Category Mapping ===
+
+export const HAND_CATEGORY_MAP: Record<string, HandCategoryType> = {
+  [HAND_IDS.BROWSER]: HAND_CATEGORIES.RESEARCH,
+  [HAND_IDS.RESEARCHER]: HAND_CATEGORIES.RESEARCH,
+  [HAND_IDS.COLLECTOR]: HAND_CATEGORIES.DATA,
+  [HAND_IDS.PREDICTOR]: HAND_CATEGORIES.DATA,
+  [HAND_IDS.TRADER]: HAND_CATEGORIES.DATA,
+  [HAND_IDS.LEAD]: HAND_CATEGORIES.COMMUNICATION,
+  [HAND_IDS.TWITTER]: HAND_CATEGORIES.COMMUNICATION,
+  [HAND_IDS.CLIP]: HAND_CATEGORIES.CONTENT,
+  [HAND_IDS.SLIDESHOW]: HAND_CATEGORIES.CONTENT,
+  [HAND_IDS.SPEECH]: HAND_CATEGORIES.CONTENT,
+  [HAND_IDS.QUIZ]: HAND_CATEGORIES.PRODUCTIVITY,
+  [HAND_IDS.WHITEBOARD]: HAND_CATEGORIES.PRODUCTIVITY,
+};
+
+// === Helper Functions ===
+
+/**
+ * Get the category for a Hand ID
+ */
+export function getHandCategory(handId: string): HandCategoryType {
+  return HAND_CATEGORY_MAP[handId] || HAND_CATEGORIES.PRODUCTIVITY;
+}
+
+/**
+ * Check if a Hand ID is valid
+ */
+export function isValidHandId(id: string): id is HandIdType {
+  return Object.values(HAND_IDS).includes(id as HandIdType);
+}
+
+/**
+ * Get all Hand IDs as an array
+ */
+export function getAllHandIds(): string[] {
+  return Object.values(HAND_IDS);
+}