feat(journal): live updates on new entry via SSE (/api/events) — admin journal auto-refreshes when a student submits

server.js

@@ -63,6 +63,36 @@ function invalidateSettings() { cacheDrop('setting:'); cacheDrop('share:payload:
 function invalidateStudents() { cacheDrop('students:'); }
 function invalidateGroups() { cacheDrop('groups:'); cacheDrop('students:'); cacheDrop('share:payload:'); }
 function invalidateEntries() { cacheDrop('entries:'); cacheDrop('students:'); cacheDrop('share:payload:'); }
+
+const sseClients = new Set();
+function broadcastEntryChanged() {
+  const frame = `event: entries_changed\ndata: ${JSON.stringify({ ts: Date.now() })}\n\n`;
+  for (const client of sseClients) {
+    try { client.write(frame); } catch (e) { sseClients.delete(client); }
+  }
+}
+
+app.get('/api/events', async (req, res) => {
+  try {
+    const token = req.headers['x-auth-token'] || req.query.token;
+    const user = await loadUserByToken(token);
+    if (!user || !user.is_active) return res.status(401).end();
+  } catch (e) {
+    return res.status(500).end();
+  }
+  res.writeHead(200, {
+    'Content-Type': 'text/event-stream',
+    'Cache-Control': 'no-cache, no-transform',
+    Connection: 'keep-alive',
+    'X-Accel-Buffering': 'no'
+  });
+  res.write(':ok\n\n');
+  sseClients.add(res);
+  const ping = setInterval(() => {
+    try { res.write(':ping\n\n'); } catch (e) { clearInterval(ping); sseClients.delete(res); }
+  }, 25000);
+  req.on('close', () => { clearInterval(ping); sseClients.delete(res); });
+});
 function invalidateShare() { cacheDrop('share:payload:'); }
 function invalidateStats() { cacheDrop('stats:'); cacheDrop('dashboard:'); cacheDrop('system-info'); }
 function invalidateAll() { cacheStore.clear(); }
@@ -3325,6 +3355,7 @@ app.post('/api/entries', entryLimiter, (req, res, next) => {
     if (entryAutoChecker) entryAutoChecker.notify();
     invalidateEntries();
     invalidateStats();
+    broadcastEntryChanged();
     res.status(201).json({ ...rows[0], files: projectFiles.length, photos: photos.length });
   } catch (e) {
     await client.query('ROLLBACK').catch(() => {});