v0.5.0 UI and new message rules

backend/src/models/db.js

@@ -182,6 +182,19 @@ function initDb() {
     console.log('[DB] Migration: added direct_peer2_id column');
   } catch (e) { /* column already exists */ }
 
+  // Migration: user-customised group display names (per-user, per-group)
+  try {
+    db.exec(`
+      CREATE TABLE IF NOT EXISTS user_group_names (
+        user_id   INTEGER NOT NULL,
+        group_id  INTEGER NOT NULL,
+        name      TEXT NOT NULL,
+        PRIMARY KEY (user_id, group_id)
+      )
+    `);
+    console.log('[DB] Migration: user_group_names table ready');
+  } catch (e) { console.error('[DB] user_group_names migration error:', e.message); }
+
   console.log('[DB] Schema initialized');
   return db;
 }