feat: sync backend with frontend - add all UserEquity fields (brandIcon, brandIconImage, brandColor, platformType, hasUsedBenefit, benefit sub-fields, etc.) and new routes

src/routes/preset.js

@@ -0,0 +1,103 @@
+const express = require('express');
+const router = express.Router();
+const { auth } = require('../middleware/auth');
+const PlatformPreset = require('../models/PlatformPreset');
+const UserEquity = require('../models/UserEquity');
+const User = require('../models/User');
+
+router.get('/', async (req, res, next) => {
+  try {
+    const presets = await PlatformPreset.find({ status: 'active' })
+      .sort({ isHot: -1, sortOrder: 1 })
+      .lean();
+
+    res.json({
+      success: true,
+      data: presets
+    });
+  } catch (error) {
+    next(error);
+  }
+});
+
+router.get('/hot', async (req, res, next) => {
+  try {
+    const presets = await PlatformPreset.find({ status: 'active', isHot: true })
+      .sort({ sortOrder: 1 })
+      .lean();
+
+    res.json({
+      success: true,
+      data: presets
+    });
+  } catch (error) {
+    next(error);
+  }
+});
+
+router.post('/import/:id', auth, async (req, res, next) => {
+  try {
+    const { id } = req.params;
+    const { expireDate, price } = req.body;
+
+    const preset = await PlatformPreset.findById(id);
+
+    if (!preset) {
+      return res.status(404).json({
+        success: false,
+        error: '预设平台不存在'
+      });
+    }
+
+    const user = await User.findById(req.user._id);
+
+    if (!user.isVip) {
+      const userEquityCount = await UserEquity.countDocuments({ owner: req.user._id });
+      if (userEquityCount >= user.platformLimit) {
+        return res.status(403).json({
+          success: false,
+          error: '非会员最多只能添加15个平台，请升级会员'
+        });
+      }
+    }
+
+    if (!expireDate) {
+      return res.status(400).json({
+        success: false,
+        error: '缺少到期时间'
+      });
+    }
+
+    const equityData = {
+      platform: preset.platform,
+      type: preset.type,
+      expireDate,
+      price: parseFloat(price) || preset.price || 0,
+      benefits: preset.benefits.map(b => ({
+        name: b.name,
+        type: b.type,
+        typeLabel: b.typeLabel,
+        expireDate,
+        used: false,
+        usedTime: null
+      })),
+      owner: req.user._id,
+      status: 'active',
+      note: preset.description || ''
+    };
+
+    const equity = await UserEquity.create(equityData);
+
+    user.platformCount = await UserEquity.countDocuments({ owner: req.user._id });
+    await user.save();
+
+    res.status(201).json({
+      success: true,
+      data: equity
+    });
+  } catch (error) {
+    next(error);
+  }
+});
+
+module.exports = router;