refactor: pipeline error propagation, me.yaml→me.ts, docs overhaul

Code:
- pipeline.ts: warn on stderr when step returns {error} object
- xiaohongshu/me.yaml → me.ts (evaluate code belongs in TS)
- index.ts: register xiaohongshu/me.ts

Docs:
- CLI-CREATOR: YAML vs TS decision tree, tap step docs with
  real example, 'explore store first' debugging workflow
- SKILL.md: add tap to Pipeline Steps table, update XHS commands
- README + README.zh-CN: update xiaohongshu command list

src/clis/index.ts

@@ -20,3 +20,4 @@ import './zhihu/question.js';
 
 // xiaohongshu
 import './xiaohongshu/search.js';
+import './xiaohongshu/me.js';

src/clis/xiaohongshu/me.ts

@@ -1,16 +1,21 @@
-site: xiaohongshu
-name: me
-description: "我的小红书个人信息"
-domain: www.xiaohongshu.com
-strategy: intercept
-browser: true
+/**
+ * Xiaohongshu me — read self profile info from Pinia user store.
+ */
+import { cli, Strategy } from '../../registry.js';
 
-columns: [nickname, red_id, fans, follows, notes, likes_collected]
+cli({
+  site: 'xiaohongshu',
+  name: 'me',
+  description: '我的小红书个人信息',
+  domain: 'www.xiaohongshu.com',
+  strategy: Strategy.COOKIE,
+  args: [],
+  columns: ['nickname', 'red_id', 'fans', 'follows', 'notes', 'likes_collected'],
+  func: async (page) => {
+    await page.goto('https://www.xiaohongshu.com/user/profile/self');
+    await page.wait(3);
 
-pipeline:
-  - navigate: https://www.xiaohongshu.com/user/profile/self
-  - wait: 3
-  - evaluate: |
+    const data = await page.evaluate(`
       (() => {
         const app = document.querySelector('#app')?.__vue_app__;
         const pinia = app?.config?.globalProperties?.$pinia;
@@ -19,12 +24,18 @@ pipeline:
         if (!userStore) return { error: 'User store not found' };
         const state = userStore.$state || {};
         const u = state.selfInfo || state.currentUserInfo || state.userInfo || {};
-        return [{
+        return {
           nickname: u.nickname || u.name || '',
           red_id: u.red_id || u.redId || '',
           fans: u.fans || u.fansCount || 0,
           follows: u.follows || u.followsCount || 0,
           notes: u.notes || u.noteCount || 0,
           likes_collected: u.collected || u.likedAndCollected || 0,
-        }];
+        };
       })()
+    `);
+
+    if (!data || data.error) return [];
+    return [data];
+  },
+});

src/pipeline.ts

@@ -26,6 +26,11 @@ export async function executePipeline(
     for (const [op, params] of Object.entries(step)) {
       if (debug) debugStepStart(i + 1, total, op, params);
       data = await executeStep(page, op, params, data, args);
+      // Detect error objects returned by steps (e.g. tap store not found)
+      if (data && typeof data === 'object' && !Array.isArray(data) && data.error) {
+        process.stderr.write(`  ${chalk.yellow('⚠')}  ${chalk.yellow(op)}: ${data.error}\n`);
+        if (data.hint) process.stderr.write(`  ${chalk.dim('💡')} ${chalk.dim(data.hint)}\n`);
+      }
       if (debug) debugStepResult(op, data);
     }
   }