feat(xiaohongshu): add 4 creator analytics commands (creator-profile, creator-stats, creator-notes, creator-note-detail) (#49)

* feat(xiaohongshu): add 4 creator analytics commands

Add creator backend support for Xiaohongshu (小红书), enabling
creators to access their analytics data from the command line.

New commands:
- creator-profile: account info (followers, likes, creator level)
- creator-stats: 7-day/30-day overview (views, likes, collects,
  comments, shares, new followers) with daily trend data
- creator-notes: note list with per-note metrics from note manager
- creator-note-detail: single note analytics breakdown
  (organic vs promoted vs video traffic)

API discovery:
- /api/galaxy/creator/home/personal_info (cookie auth, 200 OK)
- /api/galaxy/creator/data/note_detail_new (cookie auth, 200 OK)
- /api/galaxy/creator/data/note_detail?note_id=xxx (cookie auth, 200 OK)
- Note manager DOM extraction for note list (bypasses v2 signature)

All endpoints verified working with real creator account.
Screenshots (redacted) included in docs/screenshots/.

Requires: Chrome logged into creator.xiaohongshu.com

* chore: remove screenshots from repo (will host externally for PR)

* review: fix creator analytics CLI integration

Co-authored-by: stone16 <stone2paul@gmail.com>

* test: add site-scoped test runner

Co-authored-by: stone16 <stone2paul@gmail.com>

* review: ignore publish timestamps in creator note metrics

---------

Co-authored-by: jackwener <jakevingoo@gmail.com>

scripts/test-site.mjs

@@ -0,0 +1,70 @@
+#!/usr/bin/env node
+
+import { spawnSync } from 'node:child_process';
+import * as fs from 'node:fs';
+import * as path from 'node:path';
+
+const site = process.argv[2]?.trim();
+
+if (!site) {
+  console.error('Usage: npm run test:site -- <site>');
+  process.exit(1);
+}
+
+const repoRoot = path.resolve(new URL('..', import.meta.url).pathname);
+const srcDir = path.join(repoRoot, 'src');
+
+function runStep(label, command, args) {
+  console.log(`\n==> ${label}`);
+  const result = spawnSync(command, args, {
+    cwd: repoRoot,
+    stdio: 'inherit',
+    env: process.env,
+  });
+
+  if (result.status !== 0) {
+    process.exit(result.status ?? 1);
+  }
+}
+
+function walk(dir) {
+  const files = [];
+  for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
+    const fullPath = path.join(dir, entry.name);
+    if (entry.isDirectory()) {
+      files.push(...walk(fullPath));
+    } else {
+      files.push(fullPath);
+    }
+  }
+  return files;
+}
+
+function toPosix(filePath) {
+  return filePath.split(path.sep).join('/');
+}
+
+function findSiteTests() {
+  return walk(srcDir)
+    .filter(filePath => filePath.endsWith('.test.ts'))
+    .filter(filePath => {
+      const normalized = toPosix(path.relative(repoRoot, filePath));
+      return normalized.includes(`/clis/${site}/`) || normalized.includes(`/${site}.test.ts`);
+    })
+    .sort();
+}
+
+runStep('Typecheck', 'npm', ['run', 'typecheck']);
+runStep('Targeted verify', 'npx', ['tsx', 'src/main.ts', 'verify', site]);
+
+const testFiles = findSiteTests();
+if (testFiles.length === 0) {
+  console.log(`\nNo site-specific vitest files found for "${site}". Skipping full vitest run.`);
+  process.exit(0);
+}
+
+runStep(
+  `Site tests (${site})`,
+  'npx',
+  ['vitest', 'run', ...testFiles.map(filePath => path.relative(repoRoot, filePath))],
+);