feat(h5): allow guest access without login and retain history only for WeChat

h5/test/wechat-fixture.cjs

@@ -0,0 +1,20 @@
+// Test-only persisted WeChat sessions. Never import from production code.
+'use strict';
+const fs = require('node:fs');
+const path = require('node:path');
+const crypto = require('node:crypto');
+module.exports = function seedWechat(root, count = 1) {
+  const file = path.join(root, 'identities.json');
+  if (fs.existsSync(file)) throw Error('Wechat fixture requires an empty test store');
+  const db = { users: [], sessions: {}, states: {} }, entries = [];
+  for (let i = 0; i < count; i++) {
+    const user = { id: 'fixture-wechat-' + i, kind: 'wechat', identity: 'fixture-' + i, reports: [] };
+    const token = crypto.randomBytes(32).toString('hex');
+    db.users.push(user);
+    db.sessions[crypto.createHash('sha256').update(token).digest('hex')] = { user: user.id, expires: Date.now() + 86400000 };
+    entries.push({ user, token, cookie: 'juzi_session=' + token });
+  }
+  fs.mkdirSync(root, { recursive: true });
+  fs.writeFileSync(file, JSON.stringify(db));
+  return entries;
+};