v0.6.2 added help window

backend/src/routes/help.js

@@ -0,0 +1,39 @@
+const express = require('express');
+const router = express.Router();
+const fs = require('fs');
+const path = require('path');
+const { getDb } = require('../models/db');
+const { authMiddleware } = require('../middleware/auth');
+
+const HELP_FILE = '/app/data/help.md';
+const HELP_FALLBACK = path.join(__dirname, '../../data/help.md');
+
+// GET /api/help — returns markdown content
+router.get('/', authMiddleware, (req, res) => {
+  let content = '';
+  const filePath = fs.existsSync(HELP_FILE) ? HELP_FILE : HELP_FALLBACK;
+  try {
+    content = fs.readFileSync(filePath, 'utf8');
+  } catch (e) {
+    content = '# Getting Started\n\nHelp content is not available yet.';
+  }
+  res.json({ content });
+});
+
+// GET /api/help/status — returns whether user has dismissed help
+router.get('/status', authMiddleware, (req, res) => {
+  const db = getDb();
+  const user = db.prepare('SELECT help_dismissed FROM users WHERE id = ?').get(req.user.id);
+  res.json({ dismissed: !!user?.help_dismissed });
+});
+
+// POST /api/help/dismiss — set help_dismissed for current user
+router.post('/dismiss', authMiddleware, (req, res) => {
+  const { dismissed } = req.body;
+  const db = getDb();
+  db.prepare("UPDATE users SET help_dismissed = ? WHERE id = ?")
+    .run(dismissed ? 1 : 0, req.user.id);
+  res.json({ success: true });
+});
+
+module.exports = router;