feat(journal): live AI status updates in entry cards via Postgres NOTIFY trigger + SSE ai_status events

server.js

@@ -17,6 +17,39 @@ types.setTypeParser(1082, v => v);
 const app = express();
 const pool = new Pool({ connectionString: process.env.DATABASE_URL });
 
+const pgClient = require('pg').Client;
+const lister = new pgClient({ connectionString: process.env.DATABASE_URL });
+let listerConnected = false;
+function connectLister() {
+  if (listerConnected) return;
+  listerConnected = true;
+  lister.connect()
+    .then(() => lister.query('LISTEN entries_changed'))
+    .catch(e => {
+      listerConnected = false;
+      console.error('LISTEN entries_changed failed:', e.message);
+      setTimeout(connectLister, 5000);
+    });
+}
+connectLister();
+lister.on('error', (e) => {
+  console.error('LISTEN connection error:', e.message);
+});
+lister.on('end', () => {
+  listerConnected = false;
+  setTimeout(connectLister, 3000);
+});
+lister.on('notification', (msg) => {
+  let payload = null;
+  try { payload = JSON.parse(msg.payload || '{}'); } catch (e) { payload = null; }
+  const type = payload && payload.type ? payload.type : 'entry_created';
+  if (type === 'ai_status') {
+    broadcastAiStatus(payload.id, payload.status, payload.error);
+  } else {
+    broadcastEntryChanged();
+  }
+});
+
 const cacheStore = new Map();
 const SETTINGS_TTL_MS = 30 * 1000;
 const PUBLIC_TTL_MS = 60 * 1000;
@@ -72,6 +105,13 @@ function broadcastEntryChanged() {
   }
 }
 
+function broadcastAiStatus(entryId, status, error) {
+  const frame = `event: ai_status\ndata: ${JSON.stringify({ id: entryId, ai_status: status, ai_error: error || null, 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;