fix(zero): defensive fetch — don't crash Server Components on engine errors

- autogen page.js: wrap engineCall in try/catch (return null on any failure)
- /zero page: use Promise.allSettled so one failed source doesn't break page

Root cause was ENGINE_URL=host.docker.internal not resolving in coolify net,
fixed at env level but defending code too so future quirks degrade gracefully.

app/admin/(protected)/autogen/page.js

@@ -11,12 +11,17 @@ const ENGINE_URL = process.env.ENGINE_URL || 'http://127.0.0.1:3030';
 const ENGINE_SECRET = process.env.ENGINE_SECRET || 'zeropost_internal_2026';
 
 async function engineCall(path) {
-  const res = await fetch(`${ENGINE_URL}${path}`, {
-    headers: { 'x-internal-secret': ENGINE_SECRET },
-    cache: 'no-store',
-  });
-  if (!res.ok) return null;
-  return res.json();
+  try {
+    const res = await fetch(`${ENGINE_URL}${path}`, {
+      headers: { 'x-internal-secret': ENGINE_SECRET },
+      cache: 'no-store',
+    });
+    if (!res.ok) return null;
+    return await res.json();
+  } catch (err) {
+    console.error(`[autogen/page] engineCall ${path} failed:`, err.message);
+    return null;
+  }
 }
 
 export default async function AutogenPage() {

app/zero/page.js

@@ -11,10 +11,13 @@ export const metadata = {
 };
 
 export default async function ZeroPage() {
-  const [notes, character] = await Promise.all([
+  // defensive: один битый источник не должен валить страницу
+  const results = await Promise.allSettled([
     listZeroNotes({ limit: 100 }),
     getZeroCharacter(),
   ]);
+  const notes     = results[0].status === 'fulfilled' ? results[0].value : [];
+  const character = results[1].status === 'fulfilled' ? results[1].value : null;
 
   return (
     <>