feat: I have implemented the core Web3 economy features for Plexus, aligning it with the "Club 2.0" vision.

server/db.js

@@ -13,6 +13,7 @@ con.exec(`
         username VARCHAR UNIQUE,
         bio VARCHAR DEFAULT '',
         banner_color VARCHAR DEFAULT '#6366f1',
+        balance INTEGER DEFAULT 100,
         last_seen TIMESTAMP
     );
 
@@ -73,6 +74,13 @@ con.exec(`
                 if (err) console.error("Error adding banner_color column:", err);
             });
         }
+
+        const hasBalance = rows.some(r => r.name === 'balance');
+        if (!hasBalance) {
+            con.run("ALTER TABLE users ADD COLUMN balance INTEGER DEFAULT 100", (err) => {
+                if (err) console.error("Error adding balance column:", err);
+            });
+        }
     });
     console.log('Database initialized and cleared');
 });