Fix: implement explicit sync wait to resolve M_INVALID_PARAM

index.js

@@ -48,16 +48,25 @@ function loadQuotes() {
         console.log('⏳ Connecting to Matrix...');
         await client.startClient();
         console.log('✅ MatrixClient connected and authenticated\n');
-        
-        console.log('⏳ Waiting for User Identity to resolve...');
-        let attempts = 0;
-        while (!client.user || !client.user.userId) {
-            if (attempts > 30) {
-                throw new Error('Timeout waiting for Matrix User ID resolution (30s).');
-            }
-            console.log(`   ... Waiting for UserID (Attempt ${attempts + 1})`);
-            await new Promise(resolve => setTimeout(resolve, 1000));
-            attempts++;
+
+        console.log('⏳ Waiting for initial sync to complete...');
+        await new Promise((resolve, reject) => {
+            const timeout = setTimeout(() => {
+                reject(new Error('Sync timeout: Initial sync took too long.'));
+            }, 45000);
+
+            client.on('sync', (sync) => {
+                if (sync.result === 'ok') {
+                    clearTimeout(timeout);
+                    resolve();
+                } else if (sync.result === 'error') {
+                    reject(new Error(`Sync failed with error: ${sync.error}`));
+                }
+            });
+        });
+
+        if (!client.user || !client.user.userId) {
+            throw new Error('User identity not resolved after sync.');
         }
 
         console.log(`👤 Bot Identity: ${client.user.userId}`);