fix(autogen): remove sort_order from ORDER BY — column doesn't exist in autogen_settings

Critical: every runAutogen tick was failing with 'column sort_order does not exist'
since deploy of rotation feature. This means NO articles were generated on Jun 22
and draftAutoApprove also failed on Jun 23 07:00.

autogen_settings has no sort_order column — use ORDER BY category instead.

src/services/autogen.js

@@ -205,7 +205,7 @@ async function runAutogen({ forceCategory = null } = {}) {
   // Сначала берём ВСЕ активные категории (независимо от времени),
   // затем применяем ротацию — выбираем 4 из 8 по дню года.
   const { rows: allEnabled } = await query(
-    `SELECT * FROM autogen_settings WHERE enabled=true ORDER BY sort_order, category`,
+    `SELECT * FROM autogen_settings WHERE enabled=true ORDER BY category`,
     []
   );