feat: editor_notes + /api/stats/live + tokens в getArticleBySlug

- БД: таблица editor_notes (title/content/author/tags/is_pinned/is_published)
- routes/notes.js: CRUD заметок редактора
- /api/stats/live: latest article, processing job, активность за 7 дней
- getArticleBySlug: JOIN с generation_jobs для tokens_in/out

src/routes/stats.js

@@ -36,4 +36,54 @@ router.get('/', async (_, res) => {
   }
 });
 
+// GET /api/stats/live — «прямо сейчас»: текущая активность и активность за 7 дней
+router.get('/live', async (_, res) => {
+  try {
+    // Последняя опубликованная статья
+    const { rows: latestRow } = await query(
+      `SELECT a.id, a.slug, a.title, a.published_at, j.tokens_in, j.tokens_out
+       FROM articles a
+       LEFT JOIN generation_jobs j ON j.id=a.job_id
+       WHERE a.status='published'
+       ORDER BY a.published_at DESC LIMIT 1`
+    );
+
+    // Сейчас обрабатывается?
+    const { rows: processing } = await query(
+      `SELECT id, type, topic, created_at FROM generation_jobs
+       WHERE status IN ('pending','processing')
+       ORDER BY created_at DESC LIMIT 1`
+    );
+
+    // Активность по дням за 7 дней
+    const { rows: byDay } = await query(
+      `SELECT
+         DATE_TRUNC('day', published_at) as day,
+         COUNT(*)::int as cnt
+       FROM articles
+       WHERE status='published' AND published_at > NOW() - INTERVAL '7 days'
+       GROUP BY day ORDER BY day ASC`
+    );
+
+    // Запоняем пропущенные дни нулями
+    const week = [];
+    for (let i = 6; i >= 0; i--) {
+      const d = new Date();
+      d.setDate(d.getDate() - i);
+      d.setHours(0, 0, 0, 0);
+      const dayStr = d.toISOString().slice(0, 10);
+      const found = byDay.find(r => r.day && new Date(r.day).toISOString().slice(0, 10) === dayStr);
+      week.push({ day: dayStr, cnt: found ? found.cnt : 0 });
+    }
+
+    res.json({
+      latest: latestRow[0] || null,
+      processing: processing[0] || null,
+      week,
+    });
+  } catch (err) {
+    res.status(500).json({ error: err.message });
+  }
+});
+
 module.exports = router;